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SRC-46 < DTC/CIRCUIT DIAGNOSIS > B0001, B0002 DRIVER AIRBAG MODULE Is the DTC detected? YES >> Refer to NO >> Inspection End. Diagnosis Procedure INFOID:0000000011279544 WARNING: • Before servicing, turn ignition switch OFF, disconnect battery negative terminal, and wait 3 minutes or more. (To discharge backup capacitor.) • Never use unspecified tester or other measuring device. 1. HARNESS CONNECTOR Visually inspect all applicable harness connectors for the following: • Visible damage to connector or terminal • Loose terminal • Poor connection NOTE: All harness connectors should be inspected from the air bag diagnosis sensor unit to the end component (including any in-line connectors). Is the inspection result normal? YES >> GO TO 2. NO >> Perform one of the following repairs: • Visible damage: Replace the harness. • Loose terminal: Secure the terminal. • Poor connection: Secure the connection. 2. CONFIRM DTC 1. Reconnect all harness connectors. 2. Turn ignition switch ON. 3. Check for DTC using CONSULT. YES >> GO TO 3. NO >> Refer to GI-44, "Intermittent Incident" . 3. WIRING HARNESS Check the wiring harness for visible damage. NOTE: The entire wiring harness should be inspected from the air bag diagnosis sensor unit to the end component (including any in-line connectors). YES >> GO TO 4. NO >> Replace the harness. 4. CHECK SPIRAL CABLE CIRCUIT 1. Turn ignition switch OFF. 2. Disconnect driver air bag module harness connector and combination switch (spiral cable) harness con- nector. 3. Check continuity between driver air bag module harness connector and combination switch (spiral cable) harness connector. 4. Check continuity between driver air bag module harness connector and ground. Driver air bag module Combination switch (spiral cable) Continuity Connector Terminal Connector Terminal B92 29 M53 4 Yes 30 3 B93 32 2 31 3 |