P2535 - Ignition Switch Run/Start Position Circuit High
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.
P2535 - IGNITION SWITCH RUN/START POSITION CIRCUIT HIGH
| Description: | The powertrain control module (PCM) carries out a logic check on the ISP-R and ISP-R/S circuits. If the ISP-R/S circuit stays high longer than a calibrated amount of time, or is high when the PCM when it is expected to be low, this DTC sets. | ||
| Possible Causes: |
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| Diagnostic Aids: | Monitor the KEYST PID. The PID should indicate RUN when the ignition is in the ON position and RUN/START when the ignition is in the START position. | ||
| Application | Key On Engine Off | Key On Engine Running | Continuous Memory |
| All | GO to PINPOINT TEST B . | ||