Ignition System Diagnostics
- Locate the diagnostic unit and remove its cover. Connect selector cable to No. 6 socket. Turn ignition to "ON" position. Enter control function No. 1 (access codes) by pressing push button one time for at least one second and no more than 3 seconds. To enter control function No. 2, press push button twice for at least one second and no more than 3 seconds. To enter control function No. 3, press push button three times for at least one second and no more than 3 seconds.
- Watch the Red LED and count the number of flashes in the three-flash series. The flash series are separated by a three-second interval. See Figure
. Note all codes. Only three separate codes can be stored at once. If no codes are stored, the LED will flash a 1-1-1 to indicate the ignition system is operating properly.
- If a fault code is received, refer to the IGNITION SYSTEM FAULT CODES
table. Depress push button again and check for additional codes. Depress push button a third time, if necessary. If the first code repeats, there are no other codes.
- The diagnostic system memory is full when three codes are present. Those three codes must be repaired before further codes can be retrieved.
IGNITION SYSTEM FAULT CODES
| Code |
Fault |
Repair |
| 1-1-1 |
No Faults |
N/A |
| 1-4-2 |
ECU |
Replace ECU |
| 1-4-3 |
Knock Sensor Signal |
|
| 1-4-4 |
Fuel System Load Signal |
|
| 2-1-4 |
Perm./Magnet Generator |
|
| 2-2-4 |
Coolant Temp. Sensor, Check Temp. Sensor |
|
| 2-3-4 |
Throttle Switch Signal |
|