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STEP
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INSPECTION
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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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– Hazard warning lights flash.
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– Trunk lid opens.
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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 UNIT AND FLASHER UNIT) OR KEYLESS UNIT
• Measure the voltage at keyless unit connector terminal 2I during on-board diagnostic function operation.
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– When hazard warning lights flashed: Alternates between B+ and below 1.0 V
• 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 unit and flasher unit.
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– If the wiring harness is normal, replace the keyless unit and reprogram the transmitter ID code, then go to Step 11.
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– If the wiring harness is malfunctioning, repair the wiring harness, then go to Step 11.
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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 UNIT
• Disconnect the keyless unit connector.
• Measure the voltage at keyless unit connector terminal 2E.
• Is the voltage approx. 12 V?
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Yes
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Replace the keyless unit 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 UNIT GROUND CIRCUIT OR ELSEWHERE
• Measure the voltage at keyless unit connector terminals 1C and 1D.
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– All doors locked: Cycles 1.0 V or less →B+→1.0 V or less (terminal 1D)
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– All doors unlocked: Cycles B+→1.0 V or less→B+ (terminal 1C)
• 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 unit the connector.
• Inspect the wiring harness between the keyless unit and door lock actuator.
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– If the above parts are normal, go to the next step.
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– If any of above parts are malfunctioning, repair the malfunctioning part.
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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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