B3841

Park Lamp Signal Circuit High

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$22–111 (est.)

Symptoms

Side lights do not turn on
The side lights stay on constantly, even when the ignition is turned off.
Flashing side lights

Causes

Short circuit in side lights circuit
Faulty side light relay
Wiring harness damage
Incorrect operation of the lighting control unit
Oxidation of contacts

How to Fix

Check the integrity of the wiring harness
Check side light relay
Check the voltage in the circuit using a multimeter
Inspect contacts for oxidation
If necessary, replace the lighting control unit

Related codes

B3840 B3842 B3843