Code No. P0203:
No. 3 Fuel Injector System
DIAGNOSIS CONTENT
Fast decay error
TROUBLE JUDGMENT
Check Condition
Judgment Criterion
- The fast decay monitoring detects the failure of the fast decay impulse at the No.
3 cylinder.
FAIL SAFE FUNCTION
- No. 3 cylinder injector solenoid valve is stopped.
PROBABLE CAUSE
- Failed No. 3 cylinder injector
- Failed electrical harness in No. 3 cylinder injector circuit
(Refer to Symptom Procedure - No. 3 Injector System 
.)