NO.1 ONE OR MORE ON-BOARD DIAGNOSTIC FUNCTIONS INOPERATIVE[KEYLESS ENTRY SYSTEM]

id0903d2800600

•  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 SJB door lock/unlock signal circuit
―  SJB malfunction

Diagnostic procedure

STEP

INSPECTION

ACTION
1
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.
2
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.
*3
INSPECT IF MALFUNCTION IS IN DOOR LOCK ACTUATOR, SJB GROUND CIRCUIT OR ELSEWHERE
•  Measure the voltage at SJB terminals J-03 20, and J-03 31.
―  All doors locked: Cycles 1.0 V or less →B+→ 1.0 V or less (terminal J-03 20)
―  All doors unlocked: Cycles B+→ 1.0 V or less →B+ (J-03 31)
•  Is the voltage as above?
Yes
Reinspect the malfunction symptoms, then repeat from Step 1 if the malfunction recurs.
No
•  Inspect the SJB connector.
•  Inspect the wiring harness between the SJB 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.
4
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.