P1633 - Keep Alive Power (KAPWR) Voltage Too Low - DTC Chart
P1633 - KEEP ALIVE POWER (KAPWR) VOLTAGE TOO LOW - DTC CHART
| Description: This DTC sets when the KAPWR circuit has experienced a voltage interrupt. | |||
Possible Causes:
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| Diagnostic Aids: Loss of KAPWR to the PCM results in immediate malfunction indicator lamp (MIL) illumination and sets DTC P1633. | |||
| Application | Key On Engine Off | Key On Engine Running | Continuous Memory |
| All | GO to Pinpoint Test QB . | ||