P2531 - Ignition Switch Run Position Circuit Low
WARNING: This page is about a different car, the 2010 Mercury Mariner and 2010 Ford Escape. However, it is still accessible from the selected car via links, so may be relevant.
P2531 - IGNITION SWITCH RUN POSITION CIRCUIT LOW
| Description: | The PCM carries out a logic check on the ISP-R and ISP-R/S circuits. When the powertrain control module (PCM) detects the ISP-R circuit low when it is expected to be high, this DTC sets. | ||
| Possible Causes: |
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| Diagnostic Aids: | The KEYST PID should display RUN when the ignition is in the ON position. | ||
| Application | Key On Engine Off | Key On Engine Running | Continuous Memory |
| All | GO to PINPOINT TEST B . | ||