P2311

Test 1 - 5:

Test 6 - 9:

SYMPTOM
P2311-IGNITION COIL N0.4 SECONDARY CIRCUIT- INSUFFICIENT IONIZATION

TEST NOTE
This symptom is diagnosed using the test P2302-IGNITION COIL NO.1 SECONDARY CIRCUIT- INSUFFICIENT IONIZATION

WHEN MONITORED
Engine running and battery voltage greater than 10 volts.

SET CONDITION
If PCM detects that the secondary ignition burn time is incorrect, to short, or not present, an error is detected. One Trip Fault. Three good trips to turn off the MIL.

POSSIBLE CAUSES
- Good trip equal to zero
- (A142) ASD relay output circuit open
- Capacitor(s) shorted to ground
- (A142) ASD relay output circuit shorted to ground
- Coil on plug resistance
- Ignition coil
- Coil control circuit open
- Coil control circuit shorted to ground
- PCM