Ignition Coil: Testing and Inspection

DIAGNOSTIC TROUBLE CODE CONFIRMATION PROCEDURE

NOTE:
- If both DTC P0340 (0101) and P1320 (0201) are displayed, perform TROUBLE DIAGNOSIS FOR DTC P0340 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

WITH NO 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" and 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
1. Disconnect ignition coil harness connector.




2. Check resistance as shown in the figure.




If NG, replace ignition coil.
3. For checking secondary coil, remove distributor cap.




4. Check resistance between ignition coil harness connector terminal (7) and the secondary terminal on the distributor head.
If NG, replace distributor.

Resistor
1. Disconnect resistor harness connector.




2. Check resistance between terminals (1) and (2).

Resistance: Approximately 2.2 K Ohms at 25°C (77°F)

If NG, replace resistor.