P0687 - ECM/Pcm Power Relay Control Circuit High - DTC Chart
P0687 - ECM/PCM POWER RELAY CONTROL CIRCUIT HIGH - DTC CHART
| Description: This DTC sets when the PCM power relay is commanded ON and the PCMRC circuit voltage exceeds a calibrated value. |
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Possible Causes:
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| Diagnostic Aids: | |||
| Application | Key On Engine Off | Key On Engine Running | Continuous Memory |
| All | GO to Pinpoint Test B . | ||