Precaution
PRECAUTION
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.
Problem Symptoms Table|
Symptom |
Suspected Area |
See page |
|---|---|---|
|
Noise |
Oil (level low) |
|
|
Oil (wrong) |
|
|
|
When Not Using the Engine Support Bridge: Transfer (faulty) |
|
|
|
When Using the Engine Support Bridge: Transfer (faulty) |
|
|
|
Oil leakage |
Oil (level too high) |
|
|
Gasket (damaged) |
- |
|
|
Oil seal (worn or damaged) |
- |
|
|
O-ring (worn or damaged) |
- |
Transfer OilCooling Fan Circuit
DESCRIPTION
The ECM turns on or off the fan relays using signals calculated from the engine
coolant temperature, air conditioning (ON/OFF), air conditioner refrigerant pressure,
engine speed, and vehicle speed signals.
The ECM switches the circuit of the ...
ECU Power Source Circuit
DESCRIPTION
When the ignition switch is turned to ON, voltage from the ECM's MREL terminal
is applied to the EFI MAIN relay. This causes the contacts of the EFI MAIN relay
to close, which supplies power to terminal +B of the TCM.
WIRING DIAGRAM
PR ...
Fail-safe Chart
FAIL-SAFE CHART
1. HID Headlight System
(a) Light Control ECU
(1) The light control ECU stops illuminating the HID headlights when any of the
following abnormalities are detected.
Condition
Content
Open in output si ...