DTC B1142 13: IG1 Relay Circuit Malfunction: Notes
WARNING: This page is about a different car, the 2014 Mazda 6. However, it is still accessible from the selected car via links, so may be relevant.
DTC B1142:13 (FRONT BODY CONTROL MODULE) DETECTION CONDITION AND POSSIBLE CAUSES
| Description |
IG1 relay circuit malfunction |
| Detection condition |
- Front body control module (FBCM) detects an open circuit in the IG1 relay circuit for 2 s or more
with the ignition switched ON (engine off or on).
|
| Fail-safe function |
Not applicable |
| Possible cause |
- IG1 relay malfunction
- Front body control module (FBCM) connector or terminal malfunction
- IG1 relay circuit malfunction
- C/U IG1 15 A fuse malfunction
- Open circuit in the wiring harness between IG1 relay terminal C and front body control module (FBCM) terminal 2M
- Front body control module (FBCM) malfunction
|
 Courtesy of MAZDA MOTORS CORP.
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