Toyota Tacoma manuals

Toyota Tacoma 2015-2018 Service Manual: Problem Symptoms Table

PROBLEM SYMPTOMS TABLE

NOTICE:

  • After replacing the stereo component tuner assembly of vehicles subscribed to pay-type satellite radio broadcasts, XM radio ID registration is necessary (w/ SDARS System).

HINT:

  • Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.
  • Inspect the fuses and relays related to this system before inspecting the suspected areas below.
Display Function

Symptom

Suspected Area

See page

Pressing power switch does not turn on system

Proceed to "Radio Receiver Power Source Circuit"

Proceed to "Check Software Error History" in Operation Check

Navigation receiver assembly

Black screen (No image appears on navigation/audio screen)

Proceed to "Black Screen"

Navigation receiver assembly

Display does not dim (does not change to night screen) with tail switch on

Proceed to "Display does not Dim when Light Control Switch is Turned ON"

Proceed to "Illumination Circuit"

Navigation receiver assembly

Power does not turn off (Screen remains on)

Proceed to "Radio Receiver Power Source Circuit"

Navigation receiver assembly

Screen is distorted

Proceed to "Radio Receiver Power Source Circuit"

Navigation receiver assembly

Screen flicker or color distortion

Proceed to "Screen Flicker or Color Distortion"

Proceed to "Radio Receiver Power Source Circuit"

Navigation receiver assembly

Panel Switch and Touch Switch Function

Symptom

Suspected Area

See page

Illumination for panel switches does not come on with tail switch on

Proceed to "Illumination for Panel Switch does not Come on with Tail Switch ON"

Proceed to "Illumination Circuit"

Navigation receiver assembly

Panel switches do not function

Proceed to "Panel Switches do not Function"

Proceed to "Radio Receiver Power Source Circuit"

Navigation receiver assembly

Touch panel switch does not function

Proceed to "Touch Panel Switch does not Function"

Proceed to "Radio Receiver Power Source Circuit"

Navigation receiver assembly

Navigation function switches can be operated while vehicle is driving

Proceed to "Parking Brake Switch Circuit"

Proceed to "Vehicle Speed Signal Circuit between Radio Receiver and Combination Meter"

Navigation receiver assembly

Steering Pad Switch Function

Symptom

Suspected Area

See page

System cannot be operated by steering pad switch

Proceed to "Panel Switches do not Function"

Proceed to "Steering Pad Switch Circuit"

Navigation receiver assembly

Illumination for steering pad switch does not come on with tail switch on

Proceed to "Illumination Circuit"

Navigation receiver assembly

Navigation Function

Symptom

Suspected Area

See page

Vehicle position mark deviates

Proceed to "Vehicle Position Mark Deviates Greatly"

Antenna assembly with holder

Navigation receiver assembly

Vehicle position mark deviates from correct position and does not return to correct position

Proceed to "Vehicle Position Mark Deviates Greatly"

Antenna assembly with holder

Navigation receiver assembly

Vehicle position mark moves slow or fast

Proceed to "Vehicle Position Mark Deviates Greatly"

Drive the vehicle for sensor learning (At a place where GPS signals can be received, drive the vehicle clockwise and counterclockwise in at least a 200 meter square 2 times or more)

-

Antenna assembly with holder

Navigation receiver assembly

Cursor or map rotates when vehicle is stopped

Proceed to "Cursor or Map Rotates when Vehicle Stopped"

Navigation receiver assembly

Vehicle position mark moves in the opposite direction to the vehicle

Proceed to "Cursor or Map Rotates when Vehicle Stopped"

Proceed to "Reverse Signal Circuit"

Navigation receiver assembly

Vehicle position mark deviates from and returns to correct position repeatedly even though GPS mark is displayed

Proceed to "GPS Mark is not Displayed"

Drive the vehicle for sensor learning (at a place where GPS signals can be received, drive the vehicle clockwise and counterclockwise in at least a 200 meter square 2 times or more)

-

Navigation antenna assembly

Navigation receiver assembly

Vehicle position mark moves slow or fast

Proceed to "GPS Mark is not Displayed"

Navigation antenna assembly

Navigation receiver assembly

Vehicle position mark moves in the opposite direction to the vehicle

Proceed to "Cursor or Map Rotates when Vehicle Stopped"

Proceed to "Reverse Signal Circuit"

Navigation receiver assembly

Vehicle position mark is not updated

Navigation receiver assembly

Current position display does not appear

Antenna assembly with holder

Navigation receiver assembly

Voice guidance does not function

Proceed to "Voice Guidance does not Function"

Proceed to "Mute Signal Circuit between Radio Receiver and Stereo Component Amplifier"

Proceed to "Speaker Circuit"

Navigation receiver assembly

Stereo component amplifier assembly*1

Map display is incomplete

SD card

-

Navigation receiver assembly

Route cannot be calculated

Proceed to "Route cannot be Calculated"

Navigation receiver assembly

Navigation system cannot record memory point registration or each item setting

Navigation receiver assembly

A message indicating to wait for a while because of low temperature is displayed

Start the engine and increase cabin temperature (near navigation receiver assembly)

-

SD card (disc player disc)

-

Navigation receiver assembly

A message is displayed because map data cannot be read, and current position screen is not displayed

If a message appears only when driving on rough roads, check if the message disappears when vehicle is stopped

-

SD card (disc player disc)

-

Navigation receiver assembly

Map screen turns white or blue (GPS receiving status is displayed normally, and switches and own vehicle position mark are also displayed normally)

Change map scale to the smallest (a scale that shows a large area)

-

SD card (disc player disc)

-

Navigation receiver assembly

Traffic information is not displayed

Proceed to "Traffic Information is not Displayed"

Customize parameters cannot be changed (customize parameters can be changed by using the Techstream)

Navigation receiver assembly

Parking brake switch signal does not change in vehicle signal check mode

Proceed to "Parking Brake Switch Circuit"

Navigation receiver assembly

Reverse signal does not change in vehicle signal check mode

Proceed to "Reverse Signal Circuit"

Navigation receiver assembly

  • *1: w/ Stereo Component Amplifier
General Audio Function

Symptom

Suspected Area

See page

No sound can be heard from speakers

Proceed to "No Sound can be Heard from Speakers"

Proceed to "Mute Signal Circuit between Radio Receiver and Stereo Component Amplifier"*1

Proceed to "Sound Signal Circuit between Radio Receiver and Stereo Component Amplifier"*1

Proceed to "Speaker Circuit"

Proceed to "Stereo Component Amplifier Power Source Circuit"*1

Stereo component amplifier assembly*1

Navigation receiver assembly

Abnormal noise occurs

Proceed to "Noise Occurs"

Stereo component amplifier assembly*1

Navigation receiver assembly

Sound quality is bad in all modes (Volume is too low)

Proceed to "Poor Sound Quality in All Modes (Low Volume)"

Proceed to "Mute Signal Circuit between Radio Receiver and Stereo Component Amplifier"*1

Proceed to "Sound Signal Circuit between Radio Receiver and Stereo Component Amplifier"*1

Proceed to "Speaker Circuit"

Stereo component amplifier assembly*1

Navigation receiver assembly

ASL does not function

Check that the ASL function is on

-

Proceed to "Vehicle Speed Signal Circuit between Stereo Component Amplifier and Combination Meter"*1

Proceed to "Vehicle Speed Signal Circuit between Stereo Component Amplifier and Combination Meter"*1

Stereo component amplifier assembly*1

Navigation receiver assembly

  • *1: w/ Stereo Component Amplifier
FM or AM Radio Function

Symptom

Suspected Area

See page

Radio broadcast cannot be received or poor reception

Proceed to "Radio Broadcast cannot be Received or Poor Reception"

Radio broadcast can be received but radio station cannot be displayed (Some radio stations do not provide their name information)

Navigation receiver assembly

Radio broadcast can be displayed but radio broadcast cannot be heard from speakers

Check the volume settings

-

Navigation receiver assembly

Radio broadcast can be received but station list cannot be displayed

Wait for 120 seconds in radio mode, and select the "Refresh" switch on the station list screen

-

Navigation receiver assembly

Radio broadcast can be received but station list cannot be updated

Select "Refresh" on the station list screen

-

Wait for 10 minutes with the ignition switch ACC, and select the "Refresh" switch on the station list screen again

-

Navigation receiver assembly

After the voice recognition function or hands-free function is turned off, the cache radio does not operate

Check that the cache radio setting is on

-

Navigation receiver assembly

When the cache radio is playing, sound is interrupted, sound cannot be heard or sound quality is poor

Check if similar symptoms occur when receiving conventional FM/AM radio broadcasts

-

Check if similar symptoms occur when receiving other broadcasts

-

Move the vehicle to a place where the reception sensitivity is good and check again

-

Navigation receiver assembly

When the cache radio is playing, sound can be heard, but no information is displayed (some radio stations do not provide their name information)

Check if similar symptoms occur when receiving other broadcasts

-

Move the vehicle to a place where the reception sensitivity is good and check again

-

Navigation receiver assembly

"HD Radio" Function (w/ "HD Radio" Function)

Symptom

Suspected Area

See page

Only "HD Radio" stations cannot be heard or selected, or their analog or digital sound cannot be changed

Check the "HD Radio" settings

-

Navigation receiver assembly

"iPod" tagging function cannot be used

Check if a message indicating that the capacity for tag information is full is displayed

-

Check that the cache radio is not playing (when the cache radio is playing, "iPod" tagging function cannot be used)

-

Proceed to "USB Audio System Recognition/ Play Error"

No. 1 stereo jack adapter assembly

Navigation receiver assembly

When the "HD Radio" is playing, cover art is not displayed

When a song unregistered to the Gracenote CDDB is playing or cover art information is not provided by the broadcast station, its cover art cannot be displayed

-

When the "HD Radio" is playing, cover art cannot be displayed

Navigation receiver assembly

Broadcast station logo cannot be displayed

Check if similar symptoms occur when receiving other broadcasts

-

Check if similar symptoms occur with another vehicle

-

Navigation receiver assembly

SPS channel cannot be selected

Check that "HD Radio" FM mode is selected

-

After selecting "Refresh", check that the SPS channel is on the station list

-

Navigation receiver assembly

When the SPS channel is selected, sound cannot be heard

After selecting "Refresh", select the SPS channel on the station list

-

Navigation receiver assembly

CD Player Function

Symptom

Suspected Area

See page

CD cannot be played or player does not function with disc

Proceed to "Disc Player Outline" in System Description and check if the disc is compatible with the disc player

Proceed to "Check Optical Disc Error History" in Operation Check

Navigation receiver assembly

CD cannot be inserted/played or CD is ejected right after insertion

Proceed to "Check Optical Disc Error History" in Operation Check

Proceed to "CD cannot be Inserted / Played or CD is Ejected Right After Insertion"

CD cannot be ejected

Proceed to "Check Optical Disc Error History" in Operation Check

Proceed to "CD cannot be Ejected"

CD sound skips

Proceed to "Check Optical Disc Error History" in Operation Check

Proceed to "CD Sound Skips"

Sound quality is bad only when CD is played (Volume is too low)

Proceed to "Check Optical Disc Error History" in Operation Check

Proceed to "Sound Quality is Bad Only when CD is Played (Volume is Too Low)"

When CD is playing, some cover art is not displayed

When a song unregistered to the Gracenote CDDB is playing, its cover art cannot be displayed

-

When CD is playing, cover art cannot be displayed

Navigation receiver assembly

Album cover art cannot be displayed

Check that Display Cover Art on the disc settings screen is set to on

-

Check if similar symptoms occur with another vehicle

-

If an indication to update the Gracenote database appears on the album cover art screen and update data has been downloaded to the navigation receiver assembly, update the Gracenote database to the latest version

-

Navigation receiver assembly

AUX Function

Symptom

Suspected Area

See page

External device sound cannot be heard or sound quality is bad (Stereo jack is used)

Proceed to "Sound Signal Circuit between Radio Receiver and Stereo Jack Adapter"

No. 1 stereo jack adapter assembly

Navigation receiver assembly

"AUX" is not displayed on system check mode screen

Proceed to "Sound Signal Circuit between Radio Receiver and Stereo Jack Adapter"

No. 1 stereo jack adapter assembly

Navigation receiver assembly

Voice Recognition Function

Symptom

Suspected Area

See page

Voice menu screen is not displayed (Voice recognition function does not turn on)

Check if the voice recognition prompts function is "On"

-

Proceed to "Panel Switches do not Function"

Proceed to "Steering Pad Switch Circuit"

Navigation receiver assembly

When voice recognition switch is pressed, a short beep is emitted but voice cannot be recognized properly

Proceed to "Voice is not Recognized"

Proceed to "Microphone Circuit between Microphone and Radio Receiver"

SD card

-

Navigation receiver assembly

Mobile Assistant function does not work (w/ Mobile Assistant Function)

Check if the "Siri" voice recognition application can be used on the device

-

Check if a hard reset of the device corrects the problem

-

Proceed to "Steering Pad Switch Circuit"

Proceed to "Voice is not Recognized"

Proceed to "Microphone Circuit between Microphone and Navigation Receiver Assembly"

Navigation receiver assembly

"Bluetooth" Hands-free Function

Symptom

Suspected Area

See page

Bluetooth is inoperative

Proceed to "Microphone Circuit between Microphone and Radio Receiver"

Navigation receiver assembly

Cellular phone registration failure

Proceed to "Cellular Phone Registration Failure, Phone Directory Transfer Failure"

Navigation receiver assembly

Cellular phone cannot make outgoing/incoming calls or call in a certain place

Proceed to "Cellular Phone cannot Send/Receive"

Proceed to "Steering Pad Switch Circuit"

Navigation receiver assembly

Message that prompts to check the cellular phone is displayed

Proceed to "Cellular Phone cannot Make Outgoing/Incoming Calls"

Navigation receiver assembly

Phonebook data cannot be transferred manually or automatically

Check the automatically download contact setting

-

When transferring phonebook data, OBEX authentication may be required. Enter "1234" into the "Bluetooth" phone

-

Proceed to "Cellular Phone Registration Failure, Phonebook Transfer Failure"

Navigation receiver assembly

E-mail/SMS cannot be received or sent

Check whether massages can be received/sent using the cellular phone

-

Check that the phone is registered as a hands-free device

-

Check the sending and receiving e-mails/SMS via the navigation system setting

-

Proceed to "Cellular Phone Registration Failure, Phonebook Transfer Failure"

Navigation receiver assembly

"Bluetooth" Audio Function

Symptom

Suspected Area

See page

Portable player cannot be registered

Proceed to "Portable Player cannot be Registered"

Navigation receiver assembly

Portable player cannot be connected manually/automatically

Proceed to "Portable Player cannot be Registered"

Proceed to "Portable Player cannot be Connected Manually/Automatically"

Navigation receiver assembly

Cellular phone with portable audio function cannot be recognized as "Bluetooth" audio device even when connected using "Bluetooth"

Proceed to "Portable Player cannot be Registered"

Proceed to "Portable Player cannot be Connected Manually/Automatically"

Navigation receiver assembly

Sound of portable player cannot be heard from speakers, or sound is low

Proceed to "Sound of Portable Player cannot be Heard from Speakers or Sound is Low"

Navigation receiver assembly

Portable player does not play even after "Bluetooth" audio mode is selected

Proceed to "Does not Play even after Bluetooth Audio Mode is Selected"

Navigation receiver assembly

Portable player does not play

Proceed to "Does not Play even after Bluetooth Audio Mode is Selected"

Navigation receiver assembly

Track information such as track number, track name and elapsed play time and playlist is not displayed

Proceed to "Portable Player cannot be Operated Using In-vehicle Device or Track Information is not Displayed on In-vehicle Device"

Navigation receiver assembly

Operation switches for portable player such as play, pause, repeat, random and scan are not displayed

Proceed to "Portable Player cannot be Operated Using In-vehicle Device or Track Information is not Displayed on In-vehicle Device"

Navigation receiver assembly

Battery condition of portable player is not displayed

Proceed to "Portable Player cannot be Operated Using In-vehicle Device or Track Information is not Displayed on In-vehicle Device"

Navigation receiver assembly

"Bluetooth" signal condition is not displayed

Proceed to "Portable Player cannot be Operated Using In-vehicle Device or Track Information is not Displayed on In-vehicle Device"

Navigation receiver assembly

Portable player cannot pause, select file, fast forward, fast rewind, play at random or scan

Proceed to "Portable Player cannot be Operated Using In-vehicle Device or Track Information is not Displayed on In-vehicle Device"

Navigation receiver assembly

Noise occurs or sound skips when portable player plays

Proceed to "Noise Occurs or Sound Skips when Portable Player Plays"

Navigation receiver assembly

Registered device cannot be deleted

Proceed to "Registered Device cannot be Deleted"

Navigation receiver assembly

USB Audio System Function

Symptom

Suspected Area

See page

USB audio system sound cannot be heard or sound quality is bad (USB connector is used)

Proceed to "Data Signal Circuit between Stereo Jack Adapter and Extension Module"

No. 1 stereo jack adapter assembly

Navigation receiver assembly

USB device or "iPod" is not recognized

Proceed to "USB Audio System Recognition/Play Error"

Proceed to "Data Signal Circuit between Stereo Jack Adapter and Extension Module"

No. 1 stereo jack adapter assembly

Navigation receiver assembly

Track information such as track, artist and album names are not displayed

Proceed to "USB Audio System Recognition/Play Error"

Proceed to "Data Signal Circuit between Stereo Jack Adapter and Extension Module"

No. 1 stereo jack adapter assembly

Navigation receiver assembly

USB device or "iPod" is recognized but cannot play nor play in a sorted order

Proceed to "USB Audio System Recognition/Play Error"

Proceed to "Data Signal Circuit between Stereo Jack Adapter and Extension Module"

No. 1 stereo jack adapter assembly

Navigation receiver assembly

Album cover art cannot be displayed

Check that display cover art on the "iPod" Settings screen is set to on

-

Check that a JPEG file is used for the cover art

-

"iPod" battery cannot be charged

Proceed to "USB Audio System Recognition/Play Error"

No. 1 stereo jack adapter assembly

Navigation receiver assembly

SDARS System Function (w/ SDARS System)

Symptom

Suspected Area

See page

Satellite radio broadcast cannot be received or reception is bad

Proceed to "Satellite Radio Broadcast cannot be Received"

Stereo component tuner assembly

Navigation receiver assembly

Satellite radio cannot receive pay-type broadcasts

Proceed to "Satellite Radio Broadcast cannot be Received"

Stereo component tuner assembly

Navigation receiver assembly

Satellite radio broadcast cannot be selected or after selecting broadcast, broadcast cannot be added into memory

Proceed to "Satellite Radio Broadcast cannot be Received"

Proceed to "Satellite Radio Broadcast cannot be Selected or After Selecting Broadcast, Broadcast cannot be Added into Memory"

Stereo component tuner assembly

Navigation receiver assembly

Satellite radio can be displayed but radio broadcast cannot be heard from speakers

Check the volume settings

-

Proceed to "Satellite Radio Broadcast cannot be Received"

Stereo component tuner assembly

Navigation receiver assembly

Broadcast station logo cannot be displayed

Proceed to "Satellite Radio Broadcast cannot be Received"

Proceed to "Data Signal Circuit between Navigation Receiver Assembly and Extension Module"

Stereo component tuner assembly

Navigation receiver assembly

Satellite radio text information cannot be displayed

Proceed to "Satellite Radio Broadcast cannot be Received"

Stereo component tuner assembly

Navigation receiver assembly

Satellite radio broadcast station cannot be selected (scan cannot be performed)

Proceed to "Satellite Radio Broadcast cannot be Received"

Stereo component tuner assembly

Navigation receiver assembly

When the satellite radio is playing, some cover art is not displayed

When a song unregistered to the Gracenote CDDB is playing, its cover art cannot be displayed

-

When the satellite radio is playing, cover art cannot be displayed

Navigation receiver assembly

Fuel Consumption Function

Symptom

Suspected Area

See page

"Fuel Consumption" icon is dimmed

Check if other icons or items displayed on screen have any problems

-

Navigation receiver assembly

Graph is not displayed on "Trip Information" screen

Recheck with the engine running

-

Navigation receiver assembly

Cruise range is not displayed on "Trip Information" screen

Turn the ignition switch to ON and recheck

-

Navigation receiver assembly

Graph is not updated on "Past record" screen even though "Clear" is selected

Turn the ignition switch to ON and recheck

-

Navigation receiver assembly

Graph is not displayed on "Past record" screen

Turn the ignition switch to ON and recheck

-

Navigation receiver assembly

Entune App Suite Function (w/ Entune App Suite Function)

Symptom

Suspected Area

See page

An Entune App Suite system error message is displayed on the screen

Follow on screen instructions

-

Proceed to "Confirm Cellular Phone Functionality"

Proceed to "Confirm Vehicle Headunit Functionality"

Proceed to "Entune App Suite Reset Procedure" in Operation Check

Navigation receiver assembly

Entune App Suite apps and services are not operating as expected

Proceed to "Confirm Cellular Phone Functionality"

Proceed to "Confirm Vehicle Headunit Functionality"

Proceed to "Entune App Suite Reset Procedure" in Operation Check

Navigation receiver assembly

Entune App Suite voice recognition is not possible (voice recognition on the navigation system is normal)

Proceed to "Confirm Cellular Phone Functionality"

Proceed to "Confirm Vehicle Headunit Functionality"

Proceed to "Entune App Suite Reset Procedure" in Operation Check

Navigation receiver assembly

Poor sound quality of Entune App Suite system

Confirm that cellular phone handset volume is turned up

-

Confirm that adequate signal is maintained during driving

-

Proceed to "Confirm Cellular Phone Functionality"

Proceed to "Confirm Vehicle Headunit Functionality"

Proceed to "Entune App Suite Reset Procedure" in Operation Check

Navigation receiver assembly

Operation Check
OPERATION CHECK 1. CHECK NAVIGATION SYSTEM NORMAL CONDITION (a) If the symptom is applicable to any of the following, it is intended behavior, and not a malfunction. Symptom ...

Terminals Of Ecu
TERMINALS OF ECU 1. NAVIGATION RECEIVER ASSEMBLY Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition ...

Other materials:

Lost Communication with ECM / PCM "A" (U0100,U0125,U0126,U0129)
DESCRIPTION These DTCs are stored when a communication malfunction occurs between ECUs that perform pre-collision system control. DTC No. Detection Item DTC Detection Condition Trouble Area U0100 Lost Communication with ECM ...

System Description
SYSTEM DESCRIPTION 1. ENGINE IMMOBILISER SYSTEM DESCRIPTION (a) The engine immobiliser system determines whether or not to enable starting of the SFI system based on a comparison of the key ID code and the vehicle pre-registered code. The engine immobiliser system compares the vehicle certific ...

Torque Converter And Drive Plate
Inspection INSPECTION PROCEDURE 1. INSPECT TORQUE CONVERTER ASSEMBLY (a) Inspect the one-way clutch. (1) Press on the spline of the stator with a finger and rotate the spline. Check that the spline rotates smoothly when turned clockwise and rotates with difficulty when turned counterclock ...

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