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.
|
Symptom |
Suspected Area |
Link |
|---|---|---|
|
Driver side seat belt warning light does not operate |
Refer to the "Driver side seat belt warning light does not operate" |
|
|
Front passenger side seat belt warning light malfunction |
Refer to the "Front passenger side seat belt warning light malfunction" |
|
|
Seat belt warning light does not operate for driver and front passenger seats |
Combination meter assembly |
- |
|
Seat belt warning buzzer does not operate |
Check customized settings using the Techstream |
|
|
Combination meter assembly |
- |
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Diagnosis System
DIAGNOSIS SYSTEM
1. CHECK DLC3
(a) Check the DLC3 (See page ).
2. INSPECT BATTERY VOLTAGE
(a) Measure the battery voltage.
Standard voltage:
11 to 14 V
If the voltage is below 11 V, recharge ...
Terminals Of Ecu
TERMINALS OF ECU
1. CHECK COMBINATION METER ASSEMBLY
(a) Measure the resistance and voltage according to the value(s) in the table
below.
Terminal No. (Symbol)
Wiring Colo ...
Other materials:
Open in Turn Signal Circuit (B1507,B1508)
DESCRIPTION
This DTC is stored when the combination meter assembly detects an open in a turn
signal light circuit, a short in a turn signal light circuit, or a short in the
hazard warning light circuit.
DTC No.
DTC Detection Condition
Trouble Area
...
Steering Angle Sensor Initialization Incomplete (C1439,C1445)
DESCRIPTION
The skid control ECU (brake actuator assembly) acquires steering angle sensor
zero point every time the ignition switch is turned ON and the vehicle is driven
at 35 km/h (22 mph) or more for approximately 5 seconds. The ECU also stores the
previous zero point.
The steering angle ...
Yaw Rate Sensor Circuit (C1AA4,C1AA5)
DESCRIPTION
The forward recognition camera receives vehicle stability signals from the yaw
rate and acceleration sensor (airbag sensor assembly). If the yaw rate and acceleration
sensor (airbag sensor assembly) detects an abnormal yaw rate sensor signal or yaw
rate sensor power supply voltage ...
