P1643
Wait To Start Lamp Control Circuit Conditions
Severity
⚠️ MediumCan you drive?
Yes, but get it checked soon
Approx. repair cost
$2–28 (est.)
Symptoms
- The Wait To Start lamp does not light up when the ignition is turned on
- The engine has difficulty starting in cold weather
- Check Engine indicator on the instrument panel
- Floating speed on a cold engine
Causes
- Wait To Start lamp burnt out
- Open or short circuit in control circuit
- Malfunction of the glow plug control module
- Glow plug relay problems
- Oxidation of contacts in the circuit
How to Fix
- Check lamp integrity Wait To Start
- Check the condition of the wiring and connections in the circuit
- Check the operation of the glow plug relay
- Check voltage on control module
- If necessary, replace faulty components