Restraint Systems

TROUBLE CODE 31





FLOWCHART

DIAGNOSIS:
- Airbag control module is faulty.
- Airbag main harness circuit is open.
- Fuse No.16 is blown.
- Body harness circuit is open.

CAUTION: Before performing diagnostics on airbag system, turn ignition switch "OFF", disconnect battery ground cable and then wait at least 20 seconds. After 20 seconds elapse, remove instrument panel lower cover and glove box, and disconnect (AB3) and (AB8), (AB9) and (AB1O).

1. AIRBAG CONTROL MODULE INSPECTION





1) Disconnect connector (AB6) from airbag control module and connect it to test harness B2 connector (8B).
2) Connect battery ground cable and turn ignition switch "ON" (engine off).
3) Measure voltage across connector (5B) terminal and body.

(5B) Terminal / Specified voltage:
No.5 - Body / 10 V, or more

2. AIRBAG MAIN HARNESS INSPECTION

1) Go to step 2) below after performing diagnostics on airbag system as per flowchart under "1. AIRBAG CONTROL MODULE INSPECTION" previously outlined.
2) Turn ignition switch "OFF", disconnect battery ground cable and then wait at least 20 seconds.





3) Disconnect connector (AB1) from bulk harness connector (B58) at front lower pillar, and connect connector (AB1) to test harness A connector (2A).
4) Measure resistance between test harness A connector (5A) and test harness B2 connector (5B) terminals.

Connector & terminal / Specified resistance:
(5A) No.9 - (5B) No.5 / 10 Ohms, or less

5) Measure resistance between each terminal of connectors (SA) and (SB) and body.

(5A) Terminal / Specified resistance:
No.9 - Body/1O K Ohms, or more
(5B) Terminal / Specified resistance:
No.5 - Body /10 K Ohms or more