DTC P2535: Ignition Switch Run/Start Position Circuit High
WARNING: This page is about a different car, the 2011 Mercury Milan, 2011 Lincoln MKZ, 2011 Ford Fusion, 2010 Mercury Milan, and 2010 Ford Fusion. 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 ISPR/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 parameter identifier (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 . | ||