P1320

COMPONENT DESCRIPTION
Ignition Coil & Power Transistor
The ignition signal from the ECM is sent to and amplified by the power transistor. The power transistor turns on and oft the ignition coil primary circuit. This on-off operation induces the proper high voltage in the coil secondary circuit.




DIAGNOSTIC TROUBLE CODE CONFIRMATION PROCEDURE

Note: If both DTC P132O and DTC P0340, P1335, PO335 or P1336 are displayed, perform TROUBLE DIAGNOSIS FOR DTC P0340, P1335, P0335 or P1336 first.

With Consult
1) Turn ignition switch "ON".
2) Select "DATA MONITOR" mode with CONSULT.
3) Start engine. (If engine does not run, turn ignition switch to "START" for at least 5 seconds.)

OR

With GST
1) Turn ignition switch "ON".
2) Start engine. (If engine does not run, turn ignition switch to "START" for at least 5 seconds.)
3) Select MODE 3 with GST.

OR

Without Scan Tools
1) Turn ignition switch "ON".
2) Start engine. (If engine does not run, turn ignition switch to "START" for at least 5 seconds.)
3) Turn ignition switch "OFF", wait at least 5 seconds and then turn "ON".
4) Perform diagnostic test mode II (Self-diagnostic results) with ECM.










WIRING DIAGRAM







DIAGNOSTIC PROCEDURE

COMPONENT INSPECTION
Ignition Coil With Power Transistor
1. Disconnect ignition coil with power transistor harness connector.




2. Check ignition coil with power transistor for resistance between terminals (1) and (2).




If NG, replace ignition coil with power transistor assembly.

Condenser
1. Disconnect condenser harness connector.




2. Check condenser continuity between terminals (1) and (2).

Resistance: Above 1 M Ohms at 25°C (77°F)