P0325 · blink 52 – KNOCK SENSOR CIRCUIT MALFUNCTION
- System
- EFI 3ZZ-FE
- Dashboard light
- Malfunction indicator lamp (Check Engine)
- Check-engine blink code
- 52
- Applies to
- 3ZZ-FE 1.6 (PK SE Saloon 1.6 2002-05 ZZE121)
- Description
- KNOCK SENSOR CIRCUIT MALFUNCTION
- Detection / symptoms
- Detection: No knock sensor signal to engine ECU with engine speed 1,280 rpm or more
- Possible causes
- Open or short in knock sensor circuit; Knock sensor (looseness; Engine ECU
- What to check
- Workshop check order (RM821E): CHECK HARNESS AND CONNECTOR -> INSPECT KNOCK CONTROL SENSOR -> CHECK HARNESS AND CONNECTOR(ENGINE ECU−KNOCK CONTROL SENSOR)
- Confidence
- high (official Toyota RM821E)
From the factory service material. Clear the code and test-drive to confirm it returns. Search all fault codes · Common problems · Warning lights