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 AUTO LEVELING CONTROL MODULE CONNECTOR
• Turn the ignition switch off.
• Disconnect the auto leveling control module connector.
• Inspect the auto leveling control module connector terminals for poor connection (such as damaged/pulled-out pins, and corrosion).
• Is there any malfunction?
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Yes
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Repair or replace the terminal, then go to Step 6.
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No
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Go to the next step.
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2
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INSPECT PJB CONNECTOR
• Disconnect the PJB connector.
• Inspect the PJB connector terminals for poor connection (such as damaged/pulled-out pins, and corrosion).
• Is there any malfunction?
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Yes
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Repair or replace the terminal, then go to Step 6.
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No
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Go to the next step.
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3
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INSPECT AUTO LEVELING CONTROL CIRCUIT FOR OPEN CIRCUIT
• Inspect for continuity between PJB terminal J-03 Q (wiring harness-side) and auto leveling control module terminal M (wiring harness-side).
• Is there continuity?
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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 a possible open circuit, then go to Step 6.
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4
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INSPECT AUTO LEVELING CONTROL CIRCUIT FOR SHORT TO POWER SUPPLY
• Turn the ignition switch to the ON position (Engine off).
• Measure the voltage between PJB terminal J-03 Q (wiring harness-side) and body GND.
• Is the voltage B+?
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Yes
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Repair or replace the wiring harness for a possible short to power supply, then go to Step 6.
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No
|
Go to the next step.
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5
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INSPECT PJB
• Inspect the PJB.
• Is there any malfunction?
|
Yes
|
Replace the PJB, then go to the next step.
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No
|
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 PJB memory using the WDS or equivalent.
• Perform the self-test.
(See PJB SELF-TEST.)
• Is the same DTC present?
|
Yes
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Replace the auto leveling control module.
|
|
No
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DTC troubleshooting completed.
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