U019C

Lost Communication With Glow Plug Control Module 2

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$28–89 (est.)

Symptoms

Difficulty starting the engine (especially in cold weather)
Check Engine Light Is On
Reduced engine power
Extended warm-up time for glow plugs
Possible misfires

Causes

Open or short circuit in control circuit
Malfunction of the glow plug control module
Problems with the wiring harness or connectors
Faulty glow plug relay
Software error in the ECU

How to Fix

Check the integrity of the module control circuit
Inspect connectors and wiring harness for damage
Check the functionality of the control module
Test glow plug relay
Reset the error and check if it returns

Related codes

U019B U019D U0100