• 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 malfunction. If there is a problem, check to make sure connectors, terminals and wiring harness are connected correctly and undamaged.
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STEP
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INSPECTION
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ACTION
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1
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INSPECT BATTERY
• Measure voltage of battery.
• Is voltage more than 9 V?
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Yes
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Go to next step.
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No
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Battery is weak.
Inspect charge/discharge system, then go to Step 10.
(See BATTERY INSPECTION [LF, L3].)
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2
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VERIFY THAT SAS UNIT CONNECTOR IS CONNECTED
• Turn ignition switch to LOCK position.
• Disconnect negative battery cable and wait for more than 1 minute.
• Turn up floor covering.
• Are all SAS unit connectors securely connected?
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Yes
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Go to next step.
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No
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Reconnect connector properly, then go to Step 10.
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* 3
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INSPECT WIRING HARNESS BETWEEN SAS UNIT AND INSTRUMENT CLUSTER FOR CONTINUITY
• Remove column cover.
• Disconnect clock spring connector.
• Remove glove compartment.
• Disconnect passenger-side air bag module connector.
• Disconnect driver and passenger-side side air bag module connectors. (Vehicles with side air bag)
• Disconnect driver and passenger-side curtain air bag module connectors. (Vehicles with curtain 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)
• Turn up floor covering.
• Disconnect all SAS unit connectors.
• Disconnect instrument cluster connector.
• Is there continuity between SAS unit connector terminal 1T and instrument cluster connector terminal 1O?
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Yes
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Go to next step.
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No
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Replace wiring harness, then go to Step 10.
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* 4
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INSPECT WIRING HARNESS BETWEEN SAS UNIT AND INSTRUMENT CLUSTER FOR SHORT TO POWER SUPPLY
• Connect negative battery cable.
• Turn ignition switch to ON position.
• Measure voltage at instrument cluster connector terminal 1O.
• Is voltage more than approximately 9 V?
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Yes
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Replace wiring harness, then go to Step 10.
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No
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Go to next step.
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5
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CHECK TO SEE WHETHER MALFUNCTION IS IN AIR BAG SYSTEM WARNING LIGHT IN INSTRUMENT CLUSTER
• Connect instrument cluster connector terminal 1O to ground, then reconnect
connector.
• Does air bag system warning light illuminate with ignition switch ON?
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Yes
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Replace instrument cluster, then go to Step 10.
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No
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Go to next step.
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6
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INSPECT POWER SUPPLY CIRCUIT OF SAS UNIT (TERMINAL 1W)
• Turn ignition switch to LOCK position.
• Disconnect negative battery cable and wait for more than 1 minute.
• Connect all SAS unit connectors.
• Connect driver and passenger-side
pre-tensioner seat belt connectors. (Vehicles with pre-tensioner seat belt)
• Connect driver and passenger-side curtain air bag module connectors. (Vehicles with curtain air bag)
• Connect driver and passenger-side side air bag module connectors. (Vehicles with side air bag)
• Connect passenger-side air bag module connector.
• Connect clock spring connector.
• Inspect voltage for PID/DATA monitor RCM VOLT item using SST (WDS or equivalent).
• Is voltage of at least either terminal more than 9 V?
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Yes
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Go to Step 9.
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No
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Go to next step.
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7
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INSPECT WIRING HARNESS BETWEEN BATTERY AND FUSE BLOCK
• Remove driver-side front side trim.
• Remove fuse block without disconnecting connectors.
• Turn ignition switch to ON position.
• Measure voltage at terminals D (JB-01) of fuse block connector.
• Is voltage of at least either terminal more than 9 V?
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Yes
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Go to next step.
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No
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Repair wiring harnesses, then go to Step 9.
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8
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INSPECT WIRING HARNESS BETWEEN FUSE BLOCK AND SAS UNIT
• Measure voltage at terminals G (JB-03) of fuse block connector.
• Is voltage of at least either terminal more than 9 V?
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Yes
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Repair wiring harnesses, then go to Step 10.
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No
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Inspect fuse block, then go to Step 10.
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9
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VERIFY THAT SAS UNIT CONNECTOR TERMINAL 1X IS GROUND
• Turn ignition switch to LOCK position.
• Disconnect negative battery cable and wait for more than 1 minute.
• Remove column cover.
• Disconnect clock spring connector.
• Remove glove compartment.
• Disconnect passenger-side air bag module connector.
• Disconnect driver and passenger-side side air bag module connectors. (Vehicles with side air bag)
• Disconnect driver and passenger-side curtain air bag module connectors. (Vehicles with curtain air bag)
• Remove B-pillar lower trim. (Vehicle with pre-tensioner seat belt)
• Disconnect driver and passenger-side pre-tensioner seat belt connectors. (Vehicle with pre-tensioner seat belt)
• Turn up floor covering.
• Disconnect all SAS unit connectors.
• Inspect wiring harness between SAS unit connector terminal 1X and ground for following:
• Is wiring harness okay?
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Yes
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Replace SAS unit, then go to next step.
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No
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Replace wiring harnesses, then go to next step.
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10
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CONFIRM THAT MALFUNCTION SYMPTOMS DO NOT RECUR AFTER REPAIR
• Turn ignition switch to LOCK position.
• Disconnect negative battery cable and wait for more than 1 minute.
• Connect all SAS unit connectors.
• Connect driver and passenger-side
pre-tensioner seat belt connectors. (Vehicles with pre-tensioner seat belt)
• Connect driver and passenger-side curtain air bag module connectors. (Vehicles with curtain air bag)
• Connect driver and passenger-side side air bag module connectors. (Vehicles with side air bag)
• Connect passenger-side air bag module connector.
• Connect clock spring connector.
• Connect instrument cluster connector.
• Connect negative battery cable.
• Turn ignition switch to ON position.
• Does air bag system warning light operate properly?
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Yes
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Complete troubleshooting, then explain repairs to customer.
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No
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Recheck malfunction symptoms, then repeat from Step 1 if malfunction recurs.
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