Diagnosis Procedure
1.CHECK CONNECTOR
2.CHECK HARNESS FOR OPEN CIRCUIT

3.CHECK POWER SUPPLY AND GROUND CIRCUIT
Check the power supply and the ground circuit of the A/C auto amp. Refer to the following.
- Models with color display: HAC-60, "A/C AUTO AMP. : Diagnosis Procedure" - Models with monochrome display: HAC-165, "A/C AUTO AMP. : Diagnosis Procedure"
AV branch line circuit
STRG branch line circuitRemoval and installation
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE
ROOM)
Removal and Installation
CAUTION:
Do not remove the relays from the IPDM E/R. Tampering with the relays may cause
additional incidents
with the vehicle.
REMOVAL
Disconnect battery negative terminal. Refer to PG-67, " ...
Symptom diagnosis
CHARGING SYSTEM
Symptom Table
Symptom
Reference
Battery discharged
Refer to CHG-2, "Work Flow (With EXP-800 NI or GR8-1200
NI)"
or CHG-5, "Work Flow (Without EXP-800 NI or GR8-1200 NI)".
The charge warning lamp does not illuminate ...
VDC/TCS/ABS
Symptom Table
If ABS warning lamp, SLIP indicator lamp turn ON, perform self-diagnosis.
NOTE:
1: The ABS does not operate when the speed is 10 km/h (6 MPH)
or less.
2: Under the following conditions, ABS is activated and
vibration is felt when brake pedal is lightly dep ...