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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.)

BME080301046W05
• 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 | 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 (See RELAY INSPECTION) • 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.