DTC 0201

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.




CONSULT REFERENCE VALUE IN DATA MONITOR MODE







ECM TERMINALS AND REFERENCE VALUE
Specification data are reference values and are measured between each terminal and (43) (ECCS ground).


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 and wait at least 4 seconds. (If engine does not run, turn ignition switch to "START" at least 5 seconds.)

OR

With GST
(1) Turn ignition switch "ON".
(2) Start engine and wait at least 4 seconds. (If engine does not run, turn ignition switch to "START" at least 5 seconds.)
(3) Select MODE 3 with GST.

OR

No Tools
(1) Turn ignition switch "ON".
(2) Start engine and wait at least 4 seconds. (If engine does not run, turn ignition switch to "START" 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.







DIAGNOSTIC PROCEDURE

COMPONENT INSPECTION
Ignition Coil
1. Disconnect ignition coil harness connector.




2.Check resistance as shown in the figure.


Terminals: Resistance [at 25°C (77°F)]
(7) - (8) (Primary coil): Approximately 1 Ohm
(7) - secondary terminal (Secondary Coil): Approximately 10 K Ohms

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.

Power Transistor
1. Disconnect power transistor harness connector.




2. Check power transistor resistance between terminals (2) and (8).
Not 0 Ohms: OK
0 Ohms: NG

If NG, replace distributor.

Resistor
1. Disconnect resistor harness connector.




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

Resistance [at 25°C (77°F)]: Approximately 2.2 k Ohm

If NG, replace resistor.