Toyota Tacoma (2015-2018) Service Manual: Wireless Door Lock Control System(w/o Smart Key System)
- Precaution
- Parts Location
- System Description
- System Diagram
- How To Proceed With Troubleshooting
- Operation Check
- Customize Parameters
- Problem Symptoms Table
- Registration
- Diagnosis System
- Terminals Of Ecu
- Data List / Active Test
- No Answer-Back
Wireless Door Lock Tuner Circuit Malfunction (B1242)
DESCRIPTION
The door control receiver is used to receive radio waves relating to the entry
functions of the electrical key transmitter sub-assembly. The certification ECU
(smart key ECU assembly) ...
Precaution
PRECAUTION
1. DOOR CONTROL RECEIVER EXPRESSIONS
(a) The type of door control receiver used on this model differs according to
the specifications of the vehicle. The expressions listed in the table ...
Other materials:
Terminals Of Ecu
TERMINALS OF ECU
1. CHECK CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)
(a) Disconnect the C27 and C29 certification ECU (smart key ECU assembly) connectors.
(b) Measure the voltage and resistance according to the value(s) in the table
below.
HINT:
Measure the values on the wire harness side w ...
Brake Booster Pump Motor on Time Abnormally Long (C1252)
DESCRIPTION
The motor relay (semiconductor relay) is built into the master cylinder solenoid
and drives the pump motor based on a signal from the skid control ECU (master cylinder
solenoid).
DTC No.
DTC Detecting Condition
Trouble Areas
C1252
...
Power Source Mode does not Change to ON (ACC)
DESCRIPTION
If the engine switch is pressed with the electrical key transmitter sub-assembly
in the cabin, the certification ECU (smart key ECU assembly) receives a signal and
changes the power source mode.
HINT:
When the cable is disconnected and reconnected to the negative (-) battery termi ...
