Internal Control Module Brake Signal Performance
The P061E code indicates that the Engine Control Module (ECM) or Powertrain Control Module (PCM) has detected a performance issue with the brake signal circuit. This typically means the brake pedal position sensor or switch signal is not matching expected values, often due to a faulty brake light switch, wiring issues, or a problem within the control module itself. The system uses this signal for shift lock, cruise control, and start/stop functions.
1. Most Common Causes
- Faulty brake light switch
- Wiring or connector issues in brake signal circuit
- Failed ECM/PCM
- Brake pedal position sensor malfunction
2. Symptoms You Will Notice
- Check Engine Light illuminated
- Brake lights not working properly
- Cruise control inoperative
- Shift lock malfunction
3. Step-by-Step Diagnosis
Step 1: Scan for codes and record freeze frame data.
Step 2: Inspect brake light operation; check brake light switch adjustment and continuity.
Step 3: Test brake signal circuit wiring for shorts, opens, or corrosion.
Step 4: If wiring is OK, replace brake light switch and clear codes.
Step 5: If code returns, check for ECM/PCM software updates or replace module.
4. Frequently Asked Questions
Is it safe to drive with this code?▼
It may be safe for short distances, but brake lights may not work, increasing crash risk. Also, cruise control and shift lock may fail. Have it diagnosed promptly.
How much does it cost to fix?▼
Typically $50-$150 for a brake light switch replacement. If the ECM needs replacement, costs can exceed $500.
5. Commonly Affected Makes
This is a generic OBD2 code, potentially applicable to any manufacturer using this diagnostic standard.