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DTC 46

BME080201046W18

DTC 46 | Passenger-side air bag cut-off indicator light system
DETECTION CONDITION |

  Warning

  • Detection conditions are for understanding DTC outline before performing inspection. Performing inspection with only detection conditions may cause injury due to operating error or damage the system. When performing inspection, always follow inspection procedure.

• Malfunction in passenger-side air bag cut-off indicator light circuit
POSSIBLE CAUSE | • Passenger-side air bag cut-off indicator light bulb malfunction • Open or short circuit in wiring harness between SAS unit and instrument cluster • Open circuit in wiring harness between METER 10 A fuse and instrument cluster • Instrument cluster malfunction
• SAS unit malfunction

Diagnostic procedure

STEP | INSPECTION | ACTION
--- | --- | ---
1 |

  Note

  • If occupancy sensor connector (3 terminals) is located on bottom of passenger's seat, vehicle has passenger-side air bag cut-off function.

• Is vehicle equipped with passenger-side air bag cut-off function?
Yes

[Present malfunction diagnosis]

Go to next step.

[Past malfunction diagnosis]

Go to Step 4.
No | [Present malfunction diagnosis] Replace SAS unit. (See SAS UNIT REMOVAL/INSTALLATION.) [Past malfunction diagnosis] Troubleshooting completed.
2 | INSPECT OPERATION OF PASSENGER-SIDE AIR BAG CUT-OFF INDICATOR LIGHT • Turn ignition switch to LOCK position and wait for more than 1 minute. • Turn ignition switch to ON position. • Does passenger-side air bag cut-off indicator light illuminate? | Yes | Go to next step.
No | Go to Step 6.
3 | INSPECT OPERATION OF PASSENGER-SIDE AIR BAG CUT-OFF INDICATOR LIGHT • Without child restraint seat on passenger's seat, does passenger-side air bag cut-off indicator light go off after approximately 6 seconds? | Yes | Replace SAS unit. (See SAS UNIT REMOVAL/INSTALLATION.)
No | Go to next step.
4 | INSPECT WIRING HARNESS BETWEEN INSTRUMENT CLUSTER ANS 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 AIR BAG SYSTEM SERVICE WARNINGS before handling air bag system components. See SERVICE WARNINGS.

• Turn ignition switch to LOCK position.
• Disconnect negative battery cable and wait for more than 1 minute.
• Remove clock spring.
(See CLOCK SPRING REMOVAL/INSTALLATION.)
• Remove glove compartment.
• Disconnect passenger-side air bag module connector.
• Disconnect driver and passenger-side side air bag module connectors. (Vehicle with side air bag)
• Remove B-pillar lower trim. (Vehicle with pre-tensioner seat belt)
• Disconnect drive- and passenger-side pre-tensioner seat belt connectors. (Vehicle with pre-tensioner seat belt)
• Turn up floor covering.
• Disconnect all SAS unit connectors.
• Connect negative battery cable.
• Turn ignition switch to ON position.
• Measure voltage at 3G of SAS unit connector.
• Is voltage more than 9V?
Yes

[Present malfunction diagnosis]

Replace SAS unit.
(See SAS UNIT REMOVAL/INSTALLATION.)

[Past malfunction diagnosis]

Go to next step.
No | Go to next step.
5 | INSPECT WIRING HARNESS BETWEEN INSTRUMENT CLUSTER AND SAS UNIT • Turn ignition switch to LOCK position. • Disconnect negative battery cable. • Remove instrument cluster. • Inspect wiring harness between terminal 2F of instrument cluster connector and terminal 3G of SAS unit connector for following.

  - Short to ground

• Is wiring harness okay?
Yes

[Present malfunction diagnosis]

Replace instrument cluster.

[Past malfunction diagnosis]

Go to next step.
No | Replace wiring harness.
6 | INSPECT PASENGER-SIDE AIR BAG CUT-OFF INDICATOR LIGHT BULB • Turn ignition switch to LOCK position. • Disconnect negative battery cable and wait for more than 1 minutes. • Remove instrument cluster. • Is passenger-side air bag cut-off indicator light bulb okay? | Yes | Reinstall passenger-side air bag cut-off indicator light bulb, then go to next step.
No | Replace passenger-side air bag cut-off indicator light bulb.
7 | INSPECT INSTRUMENT CLUSTER • Is there continuity between terminals 1J and 2F of instrument cluster? | Yes | Go to next step.
No | Replace instrument cluster.
8 | INSPECT FOR CONTINUITY BETWEEN METER 10A FUSE AND INSTRUMENT CLUSTER • Connect negative battery cable. • Turn ignition switch to ON position. • Measure voltage at terminal 1J of instrument cluster connector. • Is voltage more than 9V? | Yes | Go to next step.
No | Replace wiring harness.
9 | INSPECT WIRING HARNESS BETWEEN INSTRUMENT CLUSTER AND 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 AIR BAG SYSTEM SERVICE WARNINGS before handling air bag system components. See SERVICE WARNINGS

• Turn ignition switch to LOCK position.
• Disconnect negative battery cable and wait for more than 1 minute.
• Remove clock spring.
(See CLOCK SPRING REMOVAL/INSTALLATION.)
• Remove glove compartment.
• Disconnect passenger-side air bag module connector.
• Disconnect driver and passenger-side side air bag module connectors. (Vehicle with side air bag)
• Remove B-pillar lower trims. (Vehicle with pre-tensioner seat belt)
• Disconnect driver and passenger-side pre-tensioner seat belt connectors. (Vehicle with pre-tensioner seat belt)
• Remove left side side wall.
• Disconnect all SAS unit connectors.
• Inspect wiring harness between terminal 2F of instrument cluster and terminal 3G of SAS unit connector for following.

  - Short to power supply
  - Open circuit

• Is wiring harness okay?
Yes

[Present malfunction diagnosis]

Replace SAS unit.
(See SAS UNIT REMOVAL/INSTALLATION.)

[Part malfunction diagnosis]

Troubleshooting completed.
No | Replace wiring harness.