NO.4 PASSENGER-SIDE AIR BAG CUT-OFF INDICATOR LIGHT REMAINS DIMMED WHEN IGNITION SWITCH IS AT ON POSITION AND HEADLIGHT SWITCH IS TURNED OFF. (CHILD RESTRAINT SEAT BUILT IN RESONATOR IS ATTACHED TO PASSENGER-SIDE SEAT.)

BME080301046205

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

4

European (L.H.D. U.K.) specs.

Passenger-side air bag cut-off indicator light remains dimmed when ignition switch is at ON position and headlight switch is turned off. (Child restraint seat built in resonator is attached to passenger-side seat.)

TROUBLESHOOTING HINTS

• Malfunction in TNS signal circuit
- SAS unit malfunction
- TNS signal circuit malfunction
- Short circuit in wiring harness between TNS relay and SAS unit

Diagnostic procedure

STEP

INSPECTION

ACTION

1
VERIFY WHETHER MALFUNCTION IS IN TNS SIGNAL CIRCUIT IN SAS UNIT OR ELSEWHERE
• Does parking light illuminate even when headlight switch is turned off?
Yes
Go to next step.
No
Replace SAS unit, then go to Step 4.
2
VERIFY WHETHER MALFUNCTION IS IN TNS SIGNAL CIRCUIT IN SAS UNIT OR ELSEWHERE
• Does parking light illuminate when TNS relay connector is disconnected?
Yes
Go to next step.
No
Inspect following TNS signal circuit:
• TNS relay
• Combination switch (headlight switch)
• Related wiring harnesses.
• Replace or repair malfunction part(s).
*3
VERIFY WHETHER MALFUNCTION IS IN WIRING HARNESS (BETWEEN SAS UNIT AND TNS RELAY FOR SHORT TO B+) OR SAS UNIT
Warning
• Handling air bag system components improperly can accidentally deploy air bag modules and pre-tensioner seat belts, which may seriously injure you. Read SERVICE WARNINGS before handling air bag system components.
• Turn ignition switch to LOCK position.
• Disconnect negative battery cable and wait for more than 1 minute.
• Remove clock spring.
• Remove glove compartment.
• Disconnect passenger-side air bag module connector.
• Disconnect driver and passenger-side side air bag module connectors. (With side air bag)
• Remove B-pillar lower trims.(Vehicle with pre-tensioner seat belt)
• Disconnect driver and passenger-side pre-tensioner seat belt connector.(Vehicle with pre-tensioner seat belt)
• Turn up floor covering.
• Disconnect all SAS unit connectors.
• Disconnect TNS relay connector.
• Connect negative battery cable.
• Turn ignition switch to ON position.
• Measure voltage at terminal 3F of SAS unit connector.
• Is voltage more than approximately 9 V?
Yes
Replace wiring harness between SAS unit and TNS relay, then go to Step 4.
No
Replace SAS unit, then go to next step.
4
VERIFY THAT MALFUNCTION SYMPTOM OCCURS AFTER REPAIR
• Connect all SAS unit connectors.
• Connect driver and passenger-side
pre-tensioner seat belt connectors.(Vehicle with pre-tensioner seat belt)
• Connect driver and passenger-side side air bag module connectors. (Vehicle with side air bag)
• Connect passenger-side air bag module
connector.
• Connect clock spring connector.
• Connect TNS relay connector.
• Connect negative battery cable.
• Attach child restraint seat built in resonator to passenger-side seat.
• Turn headlight switch to OFF position.
• Turn ignition switch to ON position.
• Does passenger-side air bag cut-off indicator light illuminate for approximately 6 seconds and then stay on without dimming?
Yes
Complete troubleshooting, then explain repairs to customer.
No
Recheck malfunction symptoms, then repeat from Step 1 if malfunction recurs.