P1317 The powertrain control module saw a fault in the spark plug voltage detection circuit for the rear bank
This fault is part of the Honda misfire codes guide. It covers the system and the order to check it.
What does P1317 mean on a Honda?
P1317. The powertrain control module saw a fault in the spark plug voltage detection circuit for the rear bank. The module may not confirm spark on that bank and misfire detection can be affected.. This Honda-enhanced code applies to Honda and Acura models that use this code.
Common causes of P1317
- Faulty spark plug voltage detection module (VDM) on the rear bank
- Break or short in the rear bank VDM wiring
- Corroded VDM connector pins
- Open or short between the VDM and the engine control module (ECM)
How to fix P1317
- Confirm the code and check for misfire codes
- Inspect the rear bank VDM connector and wiring
- Measure the circuit from the VDM to the ECM for an open or short
- Test the VDM signal against the factory spec
- Replace the rear bank VDM if it fails testing
- Clear the code and retest
Sources and review
- Checked against two independent sources.
- Last updated 2026-10-10.