DTC B1099-11: Parking Light (RH), Front Side Marker Light (RH), Taillight (LH), Rear Side Marker Light (LH) Or License Plate Light (LH)/(RH) Circuit Malfunction [Electrical Supply Unit (ESU)]: Notes
DTC B1099-11: (ELECTRICAL SUPPLY UNIT) DETECTION CONDITION AND POSSIBLE CAUSE
| Description |
Parking light (RH), front side marker light (RH), taillight (LH), rear side marker light (LH) or license plate light (LH)/(RH) circuit malfunction |
| Detection condition |
- The electrical supply unit (ESU) detects a short to ground in the parking light (RH), front side marker light (RH), taillight (LH), rear side maker light (LH) or license plate light (LH)/(RH) circuit.
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| Fail-safe |
Not applicable |
| Possible cause |
- Electrical supply unit (ESU) connector or terminal malfunction
- Front side marker light bulb (RH) malfunction
- Front side marker light (RH) connector or terminal malfunction
- Front combination light (RH) connector or terminal malfunction
- Short to ground in wiring harness between the following terminals:
- Front combination light (RH) terminal D-Electrical supply unit (ESU) terminal 4G
- Front side marker light (RH) terminal A-Electrical supply unit (ESU) terminal 4G
- Front combination light (RH) malfunction
- Rear side marker light bulb (LH) malfunction
- License plate light bulb (LH) malfunction
- License plate light bulb (RH) malfunction
- Rear side marker light (LH) connector or terminal malfunction
- License plate light (LH) connector or terminal malfunction
- License plate light (RH) connector or terminal malfunction
- Rear combination light (LH) connector or terminal malfunction
- Short to ground in wiring harness between the following terminals:
- Rear combination light (LH) terminal C-Electrical supply unit (ESU) terminal 1D
- Rear side marker light (LH) terminal A-Electrical supply unit (ESU) terminal 1D
- License plate light (LH) terminal A-Electrical supply unit (ESU) terminal 1D
- License plate light (RH) terminal A-Electrical supply unit (ESU) terminal 1D
- Rear combination light (LH) malfunction
- Electrical supply unit (ESU) malfunction
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 Courtesy of MAZDA MOTORS CORP.
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