Toyota Tacoma (2015-2018) Service Manual: Problem Symptoms Table

Toyota Tacoma (2015-2018) Service Manual / Steering Column / Steering Lock 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.

Steering Lock System

Symptom	Suspected Area	See page
Steering lock does not lock	Refer to "Steering Lock does not Lock"
Steering does not unlock (engine cannot be started)	Refer to "Unable to Unlock Steering Wheel (Engine cannot Start)"

How To Proceed With Troubleshooting

CAUTION / NOTICE / HINT HINT: Use the following procedures to troubleshoot the steering lock system. *: Use the Techstream. PROCEDURE 1. VEHICLE BROUGHT ...

Diagnosis System

DIAGNOSIS SYSTEM 1. DESCRIPTION (a) The steering lock ECU (steering lock actuator or UPR bracket assembly) stores DTCs when a malfunction occurs in the system. These DTCs can be confirmed by using ...

Other materials:

Brake Warning Light Remains ON
DESCRIPTION The BRAKE warning light comes on when brake fluid is insufficient, the parking brake is applied or the EBD is defective. WIRING DIAGRAM CAUTION / NOTICE / HINT NOTICE: When replacing the skid control ECU (master cylinder solenoid), perform calibration (See page ...

Precaution
PRECAUTION 1. PRECAUTIONS WHEN USING TECHSTREAM (a) When using the Techstream to troubleshoot the engine immobiliser system: Connect the Techstream to the DLC3 while the ignition switch is off, and turn a door courtesy light switch on and off at 1.5-second intervals until communication betwee ...

Reassembly
REASSEMBLY PROCEDURE 1. TEMPORARILY TIGHTEN FRONT DISC BRAKE BLEEDER PLUG (a) Provisionally tighten the bleeder plug to the disc brake cylinder. (b) Install the bleeder plug cap onto the bleeder plug. 2. INSTALL PISTON SEAL (a) Apply lithium soap base glycol grease to 4 new piston s ...