OBD-II code · Powertrain (generic, extended)
P2536 Ignition Switch Accessory Position Circuit
General electrical fault on the ignition switch accessory (terminal 75 / ACC) input. ACC tells the ECM that radio, fans, accessory loads should be powered without the engine running. With the input invalid, the body controller may misjudge accessory power timing.
Is it safe to drive with P2536?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelyOpen or shorted ACC wire
Repair at a glance
- Difficulty
- Medium
- DIY friendly
- Best left to a mechanic
- Typical labour
- 0.5–2 h
- Emissions test
- Usually unaffected
- Parts involved
- Ignition Switch, Wiring Harness
Related codes
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.