Ignition Switch Run Position Circuit High Voltage
The P2532 code indicates that the Powertrain Control Module (PCM) has detected a voltage signal from the ignition switch run position circuit that is higher than the expected range. This typically means the circuit has a short to voltage or a faulty ignition switch. The ignition switch sends a signal to the PCM to indicate the key is in the 'Run' position, enabling fuel pump, ignition, and other systems. A high voltage reading can cause erratic operation or prevent the vehicle from starting.
01. Most Common Causes
- Faulty ignition switch
- Short to voltage in the ignition switch run circuit
- Corroded or damaged wiring/connectors
- Failed PCM (rare)
02. Symptoms You Will Notice
- Engine may not start or stalls
- Check Engine Light illuminated
- Electrical accessories malfunction (e.g., radio, lights)
- Intermittent starting issues
03. Step-by-Step Diagnosis
Step 1: Use a scan tool to confirm P2532 and check for other codes.
Step 2: Visually inspect ignition switch wiring and connectors for damage or corrosion.
Step 3: Test ignition switch voltage at the PCM connector; compare to manufacturer specs.
Step 4: Check for shorts to voltage using a multimeter; repair or replace wiring as needed.
Step 5: If wiring is okay, replace the ignition switch.
04. Commonly Affected Makes
05. Frequently Asked Questions
Is it safe to drive with this code?▼
No, it is not recommended. The vehicle may stall or fail to start unexpectedly, posing a safety risk.
How much does it cost to fix?▼
Typically $50-$150 for parts and labor, depending on the cause. Ignition switch replacement is common.