DTC B1140-29; I-Stop Control Error Signal Received: Notes
WARNING: This page is about a different car, the 2017 Mazda 3. However, it is still accessible from the selected car via links, so may be relevant.
DETECTION CONDITION & POSSIBLE CAUSE
| Description |
i-stop control error signal received |
| Detection condition |
- Start stop unit detects that the starter ground circuit does not turn on or open circuit on even though the PCM detects an engine restart request while the engine is stopped under i-stop control for 2 s or more for a total of 5 times or more.
|
| Fail-safe |
Not applicable |
| Possible cause |
- Starter relay malfunction
- PCM connector or terminal malfunction
- Start stop unit connector or terminal malfunction
- Open circuit in wiring harness between the following terminals:
- Starter relay terminal E-PCM terminal 2AZ
- Start stop unit terminal 1D-Starter relay terminal E
- Starter relay terminal A-Start stop unit terminal 2V
- PCM malfunction
- Start stop unit malfunction
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