What causes P1310 on a Honda?

Failing ignition control module Overheated ICM from poor heat-sink contact Open ICM signal wiring Corroded ICM connector Failing distributor pickup where fitted

How do I fix P1310 on a Honda?

Check for spark on all cylinders Inspect ICM mounting and heat-sink paste Test ICM input and output signals Check the distributor pickup where applicable Replace the ICM after circuit proof

P1310 Ignition Control Module Diagnosis Fault

Q: What does P1310 mean on a Honda?

P1310. Ignition Control Module Diagnosis Fault. Applies to Accord, Prelude, Odyssey with external ICM.

Category: Powertrain - Ignition
Severity: Check Engine Light
Applies to: Accord, Prelude, Odyssey with external ICM

This fault is part of the Honda misfire codes guide. It covers the system and the order to check it.

What does P1310 mean on a Honda?

P1310. Ignition Control Module Diagnosis Fault. This Honda-enhanced code applies to Accord, Prelude, Odyssey with external ICM.

Common causes of P1310

Failing ignition control module
Overheated ICM from poor heat-sink contact
Open ICM signal wiring
Corroded ICM connector
Failing distributor pickup where fitted

How to fix P1310

Check for spark on all cylinders
Inspect ICM mounting and heat-sink paste
Test ICM input and output signals
Check the distributor pickup where applicable
Replace the ICM after circuit proof

Sources and review

Last updated 2026-09-06.