P1320

Component Description

IGNITION COIL & POWER TRANSISTOR (BUILT INTO DISTRIBUTOR)
The ignition coil is built into distributor. The ignition signal from the ECM is sent to the power transistor. The power transistor switches on and off the ignition coil primary circuit. As the primary circuit is turned on and off, the proper high voltage is induced in the coil secondary circuit.
The distributor is not repairable and must be replaced as an assembly except distributor cap and rotor head.

CONSULT-II Reference Value in Data Monitor Mode:

ECM Terminals and Reference Value
Specification data are reference values and are measured between each terminal and 48 (ECM ground).

ON BOARD DIAGNOSIS LOGIC:

DTC CONFIRMATION PROCEDURE

NOTE:
- If "DTC Confirmation Procedure" has been previously conducted, always turn ignition switch "OFF" and wait at least 5 seconds before conducting the next test.
- If DTC P1320 is displayed with P0340, perform trouble diagnosis for DTC P0340 first.

With CONSULT-II
1. Turn ignition switch "ON".
2. Select "DATA MONITOR" mode with CONSULT-II.




3. Start engine and wait at least 4 seconds. (If engine does not run, turn ignition switch to "START" at least 5 seconds.)
4. If 1st trip DTC is detected, go to "Diagnostic Procedure".

With Generic Scan Tool
Follow the procedure "With CONSULT-II" above.

EC-IGN/SG-01:

EC-IGN/SG-01 - Connector Views:

WIRING DIAGRAM

M6,E75 Connector Views:

M1,M2,M3,M4,M5,B1,E71,E72,E73 Connector Views:

Step 1:

Step 2:

Step 3:

Step 4:

Step 5:

Step 6:

Step 7:

Step 8:

Step 9:

DIAGNOSTIC PROCEDURE

Component Inspection

IGNITION COIL




1. Disconnect ignition coil harness connector.
2. Check resistance as shown in the figure.
3. For checking secondary coil, remove distributor cap.







4. Check resistance between ignition coil harness connector terminal 8 and coil tower metal tip 9 (secondary terminal) on the distributor head.
If NG, replace distributor.

POWER TRANSISTOR
1. Disconnect distributor harness connector.







2. Check power transistor resistance between terminals 5 and 7.
If NG, replace distributor.





RESISTOR
1. Disconnect resistor harness connector.
2. Check resistance as shown in the figure.

Resistance: 4 - 8 kOhms [at 25 °C (77 °F)]

If NG, replace distributor cap.