Subaru OBD-II 1996 & Newer models DTC P1512 – Idle Air Control Solenoid Signal 2 Circuit Low Input
DTC P1512 meaning on Subaru OBD-II 1996 & Newer models
DTC P1512 indicates a low input signal from the Idle Air Control (IAC) solenoid circuit 2 in Subaru vehicles equipped with OBD-II systems from 1996 onwards.
Subaru OBD-II 1996 & Newer models DTC P1512 symptoms
- Engine stalling at idle
- Rough idling or erratic idle speed
- Potential difficulty starting the engine
- Check Engine Light (CEL) illuminated on the dashboard
Subaru OBD-II 1996 & Newer models DTC P1512 causes
- Malfunctioning Idle Air Control (IAC) solenoid
- Wiring issues in the IAC solenoid circuit 2
- Corrosion or poor connections in the circuit
- Faulty Engine Control Module (ECM)
Subaru OBD-II 1996 & Newer models DTC P1512 seriousness
The seriousness of DTC P1512 lies in its potential to cause drivability issues and affect the overall performance of the vehicle. Ignoring this code may lead to further engine problems and decreased fuel efficiency.
How to diagnose DTC P1512 on Subaru OBD-II 1996 & Newer models
- Use an OBD-II scanner to retrieve the trouble code and freeze frame data
- Inspect the IAC solenoid and its wiring for any visible damage or corrosion
- Check the resistance of the IAC solenoid and compare it to specifications
- Test the voltage and continuity in the circuit using a multimeter
- Verify the ECM functionality by checking for any related codes or performing a diagnostic scan
How to fix DTC P1512 on Subaru OBD-II 1996 & Newer models
- Replace the faulty Idle Air Control (IAC) solenoid if it fails testing
- Repair or replace any damaged wiring in the IAC solenoid circuit 2
- Clean any corrosion or debris affecting the connections in the circuit
- If necessary, replace the Engine Control Module (ECM) with a new or remanufactured unit
How to erase DTC P1512 on Subaru OBD-II 1996 & Newer models
- Use an OBD-II scanner to clear the trouble code and reset the Check Engine Light
- Ensure that the underlying issue causing DTC P1512 has been resolved before clearing the code
- Perform a test drive to confirm that the code does not reappear
Recommended tools for Subaru OBD-II 1996 & Newer models diagnostics
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