DTC P2B58-00: Coolant Control Valve Circuit Problem (Us): Outline
WARNING: This page is about a different car, the 2020 Mazda CX-30. However, it is still accessible from the selected car via links, so may be relevant.
DTC P2B58:00 (PCM, SKYACTIV-G, US) DETECTION CONDITION AND POSSIBLE CAUSE
| System malfunction location |
Coolant control valve circuit problem |
| Detection condition |
- Engine coolant control valve actuator drive current exceeds the specification.
|
| Fail-safe |
- Restricts the upper limit of the engine speed.
- PCM restricts engine torque.
|
| Possible cause |
- Coolant control valve connector or terminals malfunction
- PCM connector or terminals malfunction
- Short to ground in coolant control valve control circuit
- Open circuit in coolant control valve control circuit
- Short circuit in coolant control valve control circuits
- Short to power supply in coolant control valve control circuit
- Coolant control valve malfunction
- PCM malfunction
|
 Courtesy of MAZDA MOTORS CORP.
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