P1520moderate severityPowertrain
Stop Lamp Switch Signal Malfunction
on 2012 Toyota Matrix 2.4L I4 · FWD
What this code means
The ECM detected a fault in the brake light switch signal circuit.
Symptoms
- CEL
- Cruise control inop
- Brake lights stuck
- Shift interlock issue
Common causes
- Faulty stop lamp switch
- Misadjusted switch
- Damaged wiring
- Poor connection
Diagnostic steps
- Test switch operation
- Adjust switch position
- Inspect wiring
- Check voltage
Repair notes
Replace or adjust stop lamp switch.
Other Powertrain codes on this vehicle
P0070
Ambient Air Temperature Sensor Circuit
P0071
Ambient Air Temperature Sensor Range/Performance
P0072
Ambient Air Temperature Sensor Circuit Low
P0073
Ambient Air Temperature Sensor Circuit High
P0115
Engine Coolant Temperature (ECT) Sensor 1 Circuit
P0116
ECT Sensor 1 Circuit Range/Performance
P0117
ECT Sensor 1 Circuit Low Input
P0118
ECT Sensor 1 Circuit High Input
P0119
ECT Sensor 1 Circuit Intermittent
P0125
Insufficient Coolant Temperature for Closed Loop Fuel Control