Toyota Tacoma (2015-2018) Service Manual: Steering Lock System
- Precaution
- Parts Location
- System Description
- System Diagram
- How To Proceed With Troubleshooting
- Problem Symptoms Table
- Diagnosis System
- Dtc Check / Clear
- Terminals Of Ecu
- Data List / Active Test
- Diagnostic Trouble Code Chart
- Open / Short in Steering Lock ECU (B2781)
- Power Source Control ECU Malfunction (B2782)
- IG2 Signal Malfunction (B2788)
- Unable to Lock Steering Wheel
- Unable to Unlock Steering Wheel (Engine cannot Start)
Reassembly
REASSEMBLY
PROCEDURE
1. INSTALL UN-LOCK WARNING SWITCH ASSEMBLY (w/o Smart Key System)
(a) Engage the 2 claws to install the un-lock warning switch assembly to the
upper steering column bracket a ...
Precaution
PRECAUTION
1. PRECAUTIONS WHEN CHECKING FOR DTCS
(a) When the cable is disconnected from the negative (-) battery terminal, the
DTCs stored in the steering lock ECU (steering lock actuator or UPR ...
Other materials:
SM Solenoid Circuit (C1225-C1228,C1468,C1469,C146A,C146B)
DESCRIPTION
The solenoid goes on when signals are received from the skid control ECU (master
cylinder solenoid) and controls the pressure action on the wheel cylinders thus
controlling the braking force.
DTC No.
DTC Detecting Conditions
Trouble Areas
...
Four-wheel drive system
Use the front-wheel drive control switch to select the following transfer modes.
H2 (high speed position, two-wheel
drive)
Use this for normal driving on dry hard-surfaced roads.
This position gives greater economy, quietest ride and least wear.
H4 (high speed position, four-wheel
drive) ...
Terminals Of Ecu
TERMINALS OF ECU
1. TERMINAL INSPECTION
Text in Illustration
*a
Component without harness connected
(Steering Lock ECU (Steering Lock Actuator or UPR Bracket Assembly))
-
-
(a) Measure the voltage and resistance according to the value(s) i ...
