Toyota Tacoma 2015-2018 Service Manual: 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.
- If the problem only occurs in certain locations or at certain times of day, check for wave interference.
- If the vehicle components are added, check for wave interference from the added components.
|
Symptom |
Suspected Area |
See page |
|---|---|---|
|
Security indicator light does not blink |
Proceed to "Security Indicator Light Does not Blink" |
|
|
Engine immobiliser system does not operate properly |
Proceed to "Immobiliser System does not Operate Properly" |
|
|
Engine cannot be started*1 |
Certification ECU (smart key ECU assembly) |
|
|
ECM |
|
|
|
SFI system |
|
|
|
Power source mode cannot be changed*1 |
Engine switch |
|
|
Certification ECU (smart key ECU assembly) |
|
|
|
Steering lock lock/unlock not possible*2 |
Steering lock ECU (steering lock actuator or upr bracket assembly) |
|
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- *1: Refer to Problem Symptoms Table for Smart Key System (for Start Function).
- *2: Refer to Problem Symptoms Table for Steering Lock System.
How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT
HINT:
Use this procedure to troubleshoot the engine immobiliser system.
*: Use the Techstream.
PROCEDURE
1.
VEHICLE BROUGHT TO W ...
Registration
REGISTRATION
PROCEDURE
1. DESCRIPTION OF CODE REGISTRATION
HINT:
Registering an ID code enables the entry and start function, wireless
door lock control function and engine immobiliser ...
Other materials:
Removal
REMOVAL
PROCEDURE
1. REMOVE REAR SEAT CUSHION ASSEMBLY
(a) Remove the 6 bolts and 2 rear seat cushion assemblies.
2. REMOVE NO. 4 ROOM PARTITION COVER LH
3. REMOVE NO. 4 ROOM PARTITION COVER RH
4. REMOVE NO. 3 ROOM PARTITION COVER
...
Starter Relay Circuit Short to Battery (P061512)
DESCRIPTION
While the engine is being cranked, positive battery voltage is applied to terminal
STA of the ECM. If the ECM detects the starter control (STA) signal while the vehicle
is being driven, it determines that there is a malfunction in the STA circuit. The
ECM then illuminates the MIL ...
Components
COMPONENTS
ILLUSTRATION
HINT:
The following specifications are for BD22A (w/o Differential Lock). BD22A differentials
are equipped with M10 rear differential carrier to rear axel housing fasteners.
ILLUSTRATION
ILLUSTRATION
...