OBD Guide

P1643

Wait To Start Lamp Control Circuit Conditions

P1643 is an OBD-II diagnostic trouble code meaning: Wait To Start Lamp Control Circuit Conditions. Common causes: wait to start lamp burnt out, open or short circuit in control circuit. Estimated repair cost: $2–28.

Severity
⚠️ Medium
Can 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

  1. Check lamp integrity Wait To Start
  2. Check the condition of the wiring and connections in the circuit
  3. Check the operation of the glow plug relay
  4. Check voltage on control module
  5. If necessary, replace faulty components

Related codes

Error P1643 by Vehicle Brand

FAQ

What does the P1643 code mean?

P1643 is an OBD-II diagnostic trouble code that indicates: Wait To Start Lamp Control Circuit Conditions

What causes a P1643 error code?

The most common causes of P1643 include: Wait To Start lamp burnt out; Open or short circuit in control circuit; Malfunction of the glow plug control module; Glow plug relay problems.

How do I fix a P1643 diagnostic trouble code?

To fix P1643: 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. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P1643?

Yes, but get it checked soon

How much does it cost to fix P1643?

The estimated repair cost for P1643 is $2–28. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat