P1686

Symptoms

• The car won't start
• Engine stalls after starting
• The immobilizer indicator is on
• Check Engine light comes on
• Problems with the operation of other systems connected to the bus

Causes

• Open or short circuit in data bus wiring
• SKIM module malfunction
• Problems with power or grounding of the SKIM module
• Fault in other modules connected to the bus
• Communication protocol problems

How to Fix

1. Check the integrity of the data bus wiring
2. Check power and grounding of the SKIM module
3. Diagnose the SKIM module
4. Check other modules connected to the bus
5. If necessary, replace the SKIM module

Related codes

Error P1686 by Vehicle Brand