Diagnostic procedure
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STEP
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INSPECTION
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ACTION
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|---|---|---|---|
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1
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INSPECT BATTERY VOLTAGE
• Is the battery terminal voltage normal?
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Yes
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Make sure that battery terminal connection is normal.
Go to the next step.
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No
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Charge or replace the battery, then go to Step 6.
(See BATTERY RECHARGING [L8, LF].)
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2
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INSPECT BATTERY GRAVITY
• Is battery specific gravity as specified?
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Yes
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Go to the next step.
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No
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Replace the battery, then go to Step 6.
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3
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INSPECT CHARGING SYSTEM
• Are the generator and drive belt tensions normal?
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Yes
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Go to the next step.
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No
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Replace generator and/or drive belt as necessary, then go to Step 6.
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4
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INSPECT ABS HU/CM POWER SUPPLY FOR OPEN CIRCUIT
• Start the engine.
• Measure the voltage between ABS HU/CM terminal J and ground.
• Is the voltage approx. 10 V?
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Yes
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Go to the next step.
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No
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Repair or replace the wiring harness for open circuit between the ABS HU/CM and ground, then go to Step 6.
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5
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INSPECT ABS HU/CM GROUND FOR POOR GROUND OR OPEN CIRCUIT
• Turn the ignition switch off.
• Measure the resistance between ground and ABS HU/CM terminal D.
• Is the resistance within 0-1 ohm?
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Yes
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Go to the next step.
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No
|
If there is no continuity:
• Repair or replace the wiring harness for open circuit between the ABS HU/CM and ground, then go to the next step.
If the resistance is not within 0-1 ohm:
• Repair or replace harness for poor ground, then go to the next step.
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6
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VERIFY TROUBLESHOOTING COMPLETED
• Make sure to reconnect all disconnected connectors.
• Clear the DTC from the memory.
(See Clearing DTCs Procedures.)
• Start the engine and drive the vehicle at 10 km/h {6.2 mph} or more.
• Is the same DTC present?
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Yes
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Replace the ABS HU/CM, then go to the next step.
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No
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Go to the next step.
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7
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VERIFY AFTER REPAIR PROCEDURE
• Are any other DTCs present?
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Yes
|
Go to the applicable DTC inspection.
(See DTC Table.)
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No
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DTC troubleshooting completed.
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