Toyota Tacoma 2015-2018 Service Manual: Problem Symptoms Table

Toyota Tacoma 2015-2018 Service Manual / Park Assist / Monitoring / Intuitive Parking Assist System / Problem Symptoms Table

PROBLEM SYMPTOMS TABLE

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.
When an open circuit indication is displayed by the self-check function, check for DTCs and troubleshoot according to each inspection procedure.

General

Symptom	Suspected Area	See page
System does not operate at all	Proceed to "Clearance Warning ECU Power Source Circuit"
System does not operate at all	Proceed to "Clearance Sonar Main Switch Circuit"
System cannot be turned off	Proceed to "Clearance Sonar Main Switch Circuit"

Sonar Function

Symptom	Suspected Area	See page
Combination meter assembly (shift position indicator) operates normally, but detection operates when shift lever is in any position other than R, or does not operate with shift lever in R (rear sonar)	CAN communication system
	Clearance warning ECU assembly

Buzzer Function

Symptom	Suspected Area	See page
Sonar detection operation is normal but buzzer operation is intermittent	Proceed to "Clearance Warning Buzzer Circuit"
	Clearance warning ECU assembly

Display Function

Symptom	Suspected Area	See page
Detection operation is normal but all sonar displays do not appear on multi-information display and multi-display	CAN communication system
	Clearance warning ECU assembly
Detection operation is normal but sonar displays do not appear on multi-information display	CAN communication system
	Combination meter assembly
	Clearance warning ECU assembly

Customize Parameters

CUSTOMIZE PARAMETERS PROCEDURE 1. CUSTOMIZE INTUITIVE PARKING ASSIST SYSTEM (a) Customizing with the Techstream NOTICE: When the customer requests a change in a function, first make sure ...

Terminals Of Ecu

TERMINALS OF ECU 1. CLEARANCE WARNING ECU ASSEMBLY (a) Disconnect the C30 connector from the clearance warning ECU assembly. (b) Measure the voltage and resistance according to the value(s) in th ...

Other materials:

System Voltage Circuit Short to Ground or Open (P056014)
DESCRIPTION The battery supplies power to the ECM even when the ignition switch is off. This power allows the ECM to store data such as DTC history, freeze frame data and fuel trim values. If the battery voltage falls below a minimum level, the ECM data is cleared and the ECM determines that ...

Removal
REMOVAL CAUTION / NOTICE / HINT HINT: If the bumper is damaged, there is a possibility that the installation area of the blind spot monitor sensor may be deformed and the blind spot monitor system may not operate correctly, so visually inspect the blind spot monitor sensor installation area ...

On-vehicle Inspection
ON-VEHICLE INSPECTION PROCEDURE 1. INSPECT DRIVE BELT (a) Visually check the belt for defects, such as excessive wear and frayed cords. If any defects are found, replace the drive belt. HINT: Replace the belt if there are any missing ribs. 2. BLEED POWER STEERING SYSTEM (a) Check the fluid ...