NO.1 ONE OR MORE ON-BOARD DIAGNOSTIC FUNCTIONS INOPERATIVE

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NO.1 ONE OR MORE ON-BOARD DIAGNOSTIC FUNCTIONS INOPERATIVE

B3E090369000W05

• When performing an asterisked (*) troubleshooting inspection, slightly shake the wiring harness and connectors while performing the inspection to discover whether poor contact points are the cause of any intermittent malfunctions. If there is a problem, verify that the connectors, terminals and wiring harnesses are connected correctly and undamaged.

1 | One or more on-board diagnostic functions inoperative
DESCRIPTION | • Malfunction in door lock linkage system

POSSIBLE CAUSE

• Malfunction in door lock linkage
• Malfunction in PJB door lock/unlock signal circuit

  - PJB malfunction

Diagnostic procedure

STEP | INSPECTION | ACTION
--- | --- | ---
1 | INSPECT HAZARD WARNING LIGHT OPERATION DURING ON-BOARD DIAGNOSIS • Did hazard warning lights flash during on-board diagnostic function operation? | Yes | Go to Step 3.
No | Go to next step.
2 | INSPECT HAZARD WARNING LIGHT CIRCUIT • Do hazard warning lights flash when hazard warning switch is on? | Yes | Go to next step.
No | Inspect hazard warning light circuit.
3 | VERIFY THAT ALL DOORS LOCK AND UNLOCK DURING ON-BOARD DIAGNOSIS • Do all doors unlock and lock during on-board diagnostic function operation? | Yes | Reinspect the malfunction symptoms, then repeat from Step 1 if the malfunction recurs.
No | Go to the next step.
4 | INSPECT DOOR LOCK LINKAGE • Operate the door lock knob and verify the door locks and unlocks manually. • Does every door lock system work? | Yes | Go to the next step.
No | Inspect the door lock linkage.

*5

INSPECT IF MALFUNCTION IS IN DOOR LOCK ACTUATOR, PJB GROUND CIRCUIT OR ELSEWHERE

• Measure the voltage at PJB terminals J-05 AP, and J-05 Y.

  - All doors locked: Cycles 1.0 V or less → B+ → 1.0 V or less (terminal J-05 AP)
  - All doors unlocked: Cycles B+ → 1.0 V or less → B+ (J-05 Y)

• Is the voltage as above?

Yes

Reinspect the malfunction symptoms, then repeat from Step 1 if the malfunction recurs.

No

• Inspect the PJB connector.
• Inspect the wiring harness between the PJB and door lock actuator.

  - If the above parts are normal, go to the next step.
  - If any of above parts are malfunctioning, repair the malfunctioning part.

6 | REINSPECT MALFUNCTION SYMPTOM AFTER REPAIR • Does the keyless entry system operate properly? | Yes | • Troubleshooting completed. • Explain repairs to the customer.
No | Reinspect the malfunction symptoms, then repeat from Step 1 if malfunction recurs.