LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Subaru >> 1995 >> SVX LSi >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/Codes >> Diagnostic Code Testing >> Code 13 - Cam Angle Sensor
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Code 13 - Cam Angle Sensor

NOTE: Refer to illustration for ECM connector terminal identification. See Figure .
  1. Turn ignition off. Disconnect ECM connectors. Check ECM input signal for cam angle sensor. Using a DVOM set to low-volt AC scale, check for voltage variation between ECM connector terminals A7 and A9 while cranking engine. Voltage variation should be at least 0.1 volt and should be synchronous with RPM. If voltage is not as specified, go to next step. If voltage is as specified, check ECM connector terminals for good contact. Repair as necessary. If connector terminals are okay, replace ECM.
  2. Turn ignition off. Disconnect cam angle sensor connector. Using an ohmmeter, check resistance between ECM connector terminal A7 and cam angle sensor connector terminal No. 1 (Black wire), and between ECM connector terminal A9, and cam angle sensor connector terminal No. 2 (White wire). Resistance should be zero ohms for each circuit. If resistance is as specified, go to next step. If resistance is not as specified, repair appropriate circuit as necessary.
  3. Check resistance between ground and ECM connector terminals A7 and A9. Resistance should be one megohm or greater at each terminal. If resistance is as specified, go to next step. If resistance is not as specified, repair circuit as necessary.
  4. Remove cam angle sensor. Connect oscilloscope positive lead to sensor terminal No. 1 (Black wire), and negative lead to sensor terminal No. 2 (White wire). While moving magnet over cam angle sensor pick-up coil, check oscilloscope wave pattern. If wave pattern exists, malfunction is mechanical. If wave pattern does not exist, replace cam angle sensor.
scientia non olet · About LEMON Manuals