NO.1 ONE OR MORE ON-BOARD DIAGNOSTIC FUNCTIONS INOPERATIVE [KEYLESS ENTRY SYSTEM]
id0903d2800600
1
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One or more on-board diagnostic functions inoperative
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DESCRIPTION
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• Malfunction in trunk lid opener system, hazard warning light system, or door lock linkage system
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POSSIBLE CAUSE
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• Malfunction in trunk lid opener system
• Malfunction in hazard warning light system
• Malfunction in door lock linkage
• Malfunction in keyless control module door lock/unlock signal circuit
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Diagnostic procedure
STEP |
INSPECTION |
ACTION |
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1
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INSPECT HAZARD WARNING LIGHT AND TRUNK LID OPENER OPERATION DURING ON-BOARD DIAGNOSIS
• Do all of the following items work during on-board diagnostic function operation?
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Yes
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Go to Step 8.
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No
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Go to the next step.
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2
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INSPECT HAZARD WARNING LIGHT OPERATION DURING ON-BOARD DIAGNOSIS
• Do the hazard warning lights flash during on-board diagnostic function operation?
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Yes
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Go to Step 5.
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No
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Go to the next step.
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3
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INSPECT HAZARD WARNING LIGHT CIRCUIT
• Do the hazard warning lights flash when hazard warning switch is on?
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Yes
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Go to the next step.
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No
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Inspect the hazard warning light circuit.
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*4
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INSPECT IF MALFUNCTION IS IN WIRING HARNESS (BETWEEN KEYLESS CONTROL MODULE AND FLASHER UNIT) OR KEYLESS CONTROL MODULE
• Measure the voltage at keyless control module connector terminal 2I during on-board diagnostic function operation.
• Is the voltage as above?
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Yes
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Reinspect the malfunction symptoms, then repeat from Step 1 if malfunction recurs.
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No
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• Inspect the wiring harness between the keyless control module and flasher unit.
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5
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CHECK TRUNK LID OPERATION DURING ON-BOARD DIAGNOSIS
• Does the trunk lid open during on-board diagnostic function operation?
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Yes
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Go to Step 8.
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No
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Go to the next step.
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6
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INSPECT TRUNK LID OPENER SYSTEM
• Does the trunk lid open by the trunk lid opener switch?
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Yes
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Go to the next step.
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No
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Inspect the trunk lid opener system.
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*7
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INSPECT IF MALFUNCTION IS IN TRUNK LID OPENER RELAY CIRCUIT OR KEYLESS CONTROL MODULE
• Disconnect the keyless control module connector.
• Measure the voltage at keyless control module connector terminal 2E.
• Is the voltage approx. 12 V?
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Yes
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Replace the keyless control module and the reprogram transmitter ID code, then go to Step 11.
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No
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Inspect the trunk lid opener relay circuit.
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8
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VERIFY THAT ALL DOORS LOCK AND UNLOCK DURING ON-BOARD DIAGNOSIS
• Do all doors unlock and lock during on-board diagnostic function operation?
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Yes
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Reinspect the malfunction symptoms, then repeat from Step 1 if the malfunction recurs.
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No
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Go to the next step.
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9
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INSPECT DOOR LOCK LINKAGE
• Operate the door lock knob and verify the door locks and unlocks manually.
• Does every door lock system work?
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Yes
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Go to the next step.
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No
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Inspect the door lock linkage.
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*10
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INSPECT IF MALFUNCTION IS IN DOOR LOCK ACTUATOR, KEYLESS CONTROL MODULE GROUND CIRCUIT OR ELSEWHERE
• Measure the voltage at keyless control module connector terminals 1C and 1D.
• Is the voltage as above?
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Yes
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Reinspect the malfunction symptoms, then repeat from Step 1 if the malfunction recurs.
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No
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• Inspect the keyless control module the connector.
• Inspect the wiring harness between the keyless control module and door lock actuator.
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11
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REINSPECT MALFUNCTION SYMPTOM AFTER REPAIR
• Does the keyless entry system operate properly?
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Yes
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Troubleshooting completed.
Explain repairs to customer.
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No
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Reinspect the malfunction symptoms, then repeat from Step 1 if malfunction recurs.
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