N02

Gen3 - Fault Code - N02

This fault code can appear in isolation (by itself) or in combination with other fault codes.
This fault code usually relates to a problem with the CPIM module.

A number of factors can be at play when this fault code appears by itself:
1. CPIM could have a hardware fault.
2. CPIM could have water ingress or water damage (corrosion).

Remedies
1. Send the CPIM back to EQSS for troubleshooting/repair.
2. Open the main CPIM cover and check for water ingress and/or PCB corrosion. If water damage found then open an EQSS support request - then send the CPIM back to EQSS for troubleshooting/repair.

When this fault code occurs in combination with other fault codes:
1. Check the CAN bus cable and CAN bus jack for signs of damage (check CAN bus cable continuity if possible with some sort of continuity tester).
We don't encourage customers to open the CPIM as that action may compromise the water seal integrity of that unit.
2. However, as a last resort, unscrew the CPIM cover and check all of the internal PCB connectors (re-seat connectors onto terminals if necessary). The CPIM cover - rubber gasket seal - must then be carefully re-seated before firmly screwing down the CPIM lid (for continued CPIM module water ingress resistance).




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