Diagnostic procedure
|
STEP
|
INSPECTION
|
ACTION
|
|
|---|---|---|---|
|
1
|
INSPECT BATTERY VOLTAGE
• Is battery terminal voltage normal?
|
Yes
|
Make sure that battery terminal connection is normal.
Go to the next step.
|
|
No
|
Charge or replace battery, then go to Step 6.
|
||
|
2
|
INSPECT BATTERY GRAVITY
• Is battery specific gravity as specified?
|
Yes
|
Go to the next step.
|
|
No
|
Replace battery, then go to Step 6.
|
||
|
3
|
INSPECT CHARGING SYSTEM
• Are generator and drive belt tensions normal?
|
Yes
|
Go to the next step.
|
|
No
|
Adjust drive belt tension as necessary.
Replace generator and/or drive belt as necessary.
|
||
|
4
|
INSPECT ABS (ABS/TCS) HU/CM POWER SUPPLY CIRCUIT FOR OPEN CIRCUIT
• Start engine.
• Measure voltage between ABS (ABS/TCS) HU/CM terminal Z and ground.
• Is voltage above 10 V?
|
Yes
|
Go to the next step.
|
|
No
|
Go to Step 6.
|
||
|
5
|
INSPECT ABS (ABS/TCS) HU/CM GROUND CIRCUIT FOR POOR GROUND OR OPEN CIRCUIT
• Turn the ignition switch off.
• Measure resistance between ground and ABS (ABS/TCS) HU/CM terminal AC.
• Is resistance within 0-1 ohm?
|
Yes
|
Go to the next step.
|
|
No
|
If there is no continuity:
• Repair or replace harness for open circuit between ABS (ABS/TCS) HU/CM and ground, then go to the next step.
If resistance is not within 0-1 ohm:
• Repair or replace harness for poor ground then go to the next step.
|
||
|
6
|
VERIFY TROUBLESHOOTING COMPLETED
• Make sure to reconnect all disconnected connectors.
• Clear the DTC from the memory.
(See Clearing DTCs Procedures.)
• Is same DTC present?
|
Yes
|
Replace ABS (ABS/TCS) HU/CM, then go to the next step.
|
|
No
|
Go to the next step.
|
||
|
7
|
VERIFY AFTER REPAIR PROCEDURE
• Is there any other DTC present?
|
Yes
|
Go to the applicable DTC inspection.
(See DTC Table.)
|
|
No
|
Troubleshooting completed.
|
||
