P1470
Leakage Diagnostic Pump Control Circuit Electrical
Severity
⚠️ MediumCan you drive?
Yes, but get it checked soon
Approx. repair cost
$17–56 (est.)
Symptoms
- Check Engine Light Is On
- Possible problems starting the engine
- Increased fuel consumption
- Engine failures
- Unstable idle speed
Causes
- Open or short circuit in the pump control circuit
- Leak diagnostic pump malfunction
- Poor contact in circuit connectors
- Pump relay problems
- Engine control unit malfunction
How to Fix
- Check the integrity of the pump control circuit
- Check the condition of connectors and contacts
- Test the performance of the leak diagnostic pump
- Check pump relay (if equipped)
- If necessary, replace the leakage diagnostic pump