U030B

Software Incompatibility With Glow Plug Control Module 2

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

~$167 (est.)

Symptoms

Difficulty starting the engine in cold weather
Rough engine idling
Increased exhaust smoke
Check Engine indicator on the dashboard
Reduced engine power

Causes

Outdated ECU software
Errors in the glow plug module firmware
Software version mismatch between modules
Software damage due to power surges
Incompatibility after replacing glow plug module

How to Fix

Diagnostics using a scanner to check software versions
ECU software update
Flashing the glow plug module
Checking the integrity of the wiring harness to the module
Replacing the glow plug module if necessary

Related codes

U030A U030C U030D