NO.1 AIR BAG SYSTEM WARNING LIGHT DOES NOT ILLUMINATE

id080300800200

1	Air bag system warning light does not illuminate.
DESCRIPTION	Malfunction in air bag system warning light circuit (short to ground)
POSSIBLE CAUSE	•  SAS control module malfunction •  Instrument cluster (print plate) malfunction •  Short to ground circuit wiring harness between instrument cluster and SAS control module

Diagnostic Procedure

STEP	INSPECTION		ACTION
1	INSPECT OTHER WARNING AND INDICATOR LIGHTS CIRCUIT IN INSTRUMENT CLUSTER •  Turn ignition switch to ON position. •  Do other warning and indicator lights illuminate?	Yes	Turn ignition switch to LOCK position, then go to the next step.
		No	Inspect instrument cluster power supply system and ground system, then go to step 6.
2	INSPECT DTCS IN INSTRUMENT CLUSTER •  Inspect the DTC for the SAS control module ON-BOARD DIAGNOSTIC SYSTEM. •  Have DTCs been recorded in memory?	Yes	Perform the applicable DTC inspection, then go to step 6. (See DTC TABLE.)
		No	Go to the next step.
3	INSPECT IF MALFUNCTION IS IN SAS CONTROL MODULE OR ELSEWHERE Warning •  Handling the air bag system components improperly can accidentally deploy the air bag modules and pre-tensioner seat belts, which may seriously injure you. Read the service warnings and cautions before handling the air bag system components. (See AIR BAG SYSTEM SERVICE WARNINGS.) (See AIR BAG SYSTEM SERVICE CAUTIONS.) •  Turn the ignition switch to the LOCK position. •  Disconnect the negative battery cable and wait for 1 min or more. •  Remove the column cover. (See COLUMN COVER REMOVAL/INSTALLATION.) •  Disconnect the clock spring connector. •  Remove the glove compartment cover. (See GLOVE COMPARTMENT COVER REMOVAL/INSTALLATION.) •  Disconnect the passenger-side air bag module connector. •  Disconnect the side air bag module connectors. (Vehicles with side air bag module) •  Remove the headliner. (See HEADLINER REMOVAL/INSTALLATION.)(See HEADLINER REMOVAL/INSTALLATION [3HB].) •  Disconnect the driver and passenger-side curtain air bag module connectors. (Vehicles with curtain air bag module) •  Remove the B-pillar lower trims. (See B-PILLAR LOWER TRIM REMOVAL/INSTALLATION.) •  Disconnect the driver-side and passenger-side pre-tensioner seat belt connector. •  Remove the rear console. (See REAR CONSOLE REMOVAL/INSTALLATION.) •  Disconnect the all SAS control module connectors. •  Connect the negative battery cable. •  Turn ignition switch to ON position. •  Do air bag system warning light illuminate?	Yes	Replace the SAS control module, then go to step 6. (See SAS CONTROL MODULE REMOVAL/INSTALLATION.)
		No	Go to the next step.
4*	INSPECT IF MALFUNCTION IS IN INSTRUMENT CLUSTER OR ELSEWHERE •  Turn the ignition switch to ON position. •  Measure the voltage between following instrument cluster terminal and body ground. ―  Terminal 2S/2U (B+) ―  Terminal 2A (below 1.0 V) •  Are the terminal voltages normal?	Yes	Go to the next step.
		No	Repair or replace for open or short circuit, then go to the next step.
5*	INSPECT IF MALFUNCTION IS IN INSTRUMENT CLUSTER OR ELSEWHERE •  Turn on all warning light and indicator light using M-MDS simulation function “WL+IL” (See ACTIVE COMMAND MODES INSPECTION [INSTRUMENT CLUSTER].) •  Does the air bag system warning light turn on?	Yes	Go to the next step.
		No	Replace the instrument cluster. (See INSTRUMENT CLUSTER REMOVAL/INSTALLATION.)
6	INSPECT IF MALFUNCTION IS IN SAS CONTROL MODULE OR ELSEWHERE •  Turn the ignition switch to the LOCK position. •  Disconnect the negative battery cable and wait for 1 min or more. •  Connect the all SAS control module connectors. •  Connect the driver-side and passenger-side pre-tensioner seat belt connector. •  Connect the driver and passenger-side curtain air bag module connectors. (Vehicles with curtain air bag module) •  Connect the side air bag module connectors. (Vehicles with side air bag module) •  Connect the passenger-side air bag module connector. •  Connect the clock spring connector. •  Connect the negative battery cable. •  Turn ignition switch to ON position. •  Does air bag system warning light operate properly?	Yes	Replace the SAS control module. (See SAS CONTROL MODULE REMOVAL/INSTALLATION.)
		No	Recheck malfunction symptoms, then repeat from step 1 if malfunction recurs.