DTC P0687 - ECM/PCM Power Relay Control Circuit High
WARNING: This page does not describe the selected car, but rather 26 other vehicles, including the 2020 Lincoln Navigator, 2020 Lincoln Nautilus, 2020 Lincoln MKZ, 2020 Lincoln Corsair, and 2020 Lincoln Continental. However, it is still accessible from the selected car via links, so may be relevant.
DTC DESCRIPTION P0687 - ECM/PCM POWER RELAY CONTROL CIRCUIT HIGH
| Description: | This DTC sets when the ignition switch position run (ISP-R) circuit indicates the ignition is in the OFF, ACC, or LOCK position, and the amount of time the PCM remains powered through the PCM power relay exceeds a predetermined amount of time. | ||
| Possible Causes: |
|
||
| Diagnostic Aids: | Ability to communicate with the PCM when the ignition is in the OFF, ACC, or LOCK position indicates a hard fault. | ||
| Application | Key On Engine Off | Key On Engine Running | Continuous Memory |
| All | GO to PINPOINT TEST B . | ||