Code No. P0683:
Glow Plug Communication
DIAGNOSIS CONTENT
Faulty diagnosis transmission or protocol error
TROUBLE JUDGMENT
Check Condition
Judgment Criterion
- Faulty diagnosis transmission or protocol error.
FAIL SAFE FUNCTION
- Diagnosis cable of glow control relay is not evaluated.
DIAGNOSIS CONTENT
No load (PWM)
TROUBLE JUDGMENT
Check Condition
Judgment Criterion
- Hardware of the power stage reports a no load for the specified time.
FAIL SAFE FUNCTION
- Glow control is prohibited.
PROBABLE CAUSE
- Failed glow control relay
- Failed electrical harness in glow control relay circuit
(Refer to Symptom Procedure - Glow System .)