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DTC U0338 09: Error Light Switch Signal Received From Start Stop Unit: 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 U0338:09 (FRONT BODY CONTROL MODULE) DETECTION CONDITION AND POSSIBLE CAUSES
| Description |
Error light switch signal received from start stop unit |
| Detection condition |
- Front body control module (FBCM) receives the CAN error signals from the start stop unit 3 times
with the ignition switched ON (engine off or on).
|
| Fail-safe function |
- If DTC U0338:09 is detected when the ignition is switched ON (engine off or on), the headlight LO and the TNS are illuminated.
- If DTC U0338:09 is cleared, the headlight LO and the TNS are turned off, and the operation returns to normal.
|
| Possible cause |
- Light switch malfunction
- Start stop unit malfunction
- Front body control module (FBCM) malfunction
|
| System wiring diagram |
Not applicable |