Details On DTCs
P2503: 00 (PCM (H3T)) DETECTION CONDITION AND POSSIBLE CAUSE
| System malfunction location |
DC-DC converter control: Circuit malfunction, DC-DC converter malfunction |
| Detection condition |
Determination condition |
- If the PCM detects of the following conditions.
- The PCM cannot receive the CAN signal from the DC-DC converter.
- The PCM terminal voltage is the not within or less.
- 48 V power supply is connected.
|
| Preconditions |
|
| Determination period |
|
| Fail-safe |
- Fixes battery charging voltage.
- The engine speed is limited to a predetermined speed or less.
|
| Vehicle status when DTCs are output |
|
| Possible cause |
- Malfunction in wiring harness (including connector/terminal) between battery and DC-DC converter
- Malfunction in wiring harness (including connector/terminal) between DC-DC converter and PCM
- DC-DC converter malfunction
- PCM malfunction
|