Retrieving Codes
- Locate diagnostic unit, and remove its cover. Connect selector cable to socket No. 5. 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.NOTE: Information on control function No. 3 appears later in article. There is no control function No. 2 for the turbo system. To enter control function No. 3, press push button 3 times for at least one second and no more than 3 seconds.
- Watch the Red LED and count the number of flashes in the 3-flash series. The flash series are separated by a 3 second interval. See Figure. Note all codes. Only 3 separate codes can be stored at once. If no codes are stored, the LED will flash a 1-1-1 to indicate turbo system is operating properly.
- If a fault code is received, refer to the TURBO SYSTEM FAULT CODES table. Depress push button again and check for additional codes. Depress push button a third time if necessary. If first code repeats, no other codes are present.
- Diagnostic system memory is full when 7 codes are present. Those 7 codes must be repaired before further codes can be retrieved.
NOTE:
Not all codes listed in TURBO SYSTEM FAULT CODES table are used on every vehicle.
TURBO SYSTEM FAULT CODES (1)
| Code | Fault | Repair | ||||||
|---|---|---|---|---|---|---|---|---|
| 1-1-1 | No Faults | N/A | ||||||
| 2-4-2 | Turbo Control Valve | (2) Check Turbo Control Valve | ||||||
| 3-1-2 | Knock Sensor Signal | Check For Knocking | ||||||
| 3-4-2 | A/C Blocking Relay | Check A/C Blocking Relay | ||||||
| 4-2-1 | Press. Sensor Signal | (3) Check Turbo Control Valve | ||||||
| 4-2-3 | Throttle Pos. Sensor | Check Sensor | ||||||
| 4-3-1 | Temp. Sensor Signal | Check Sensor | ||||||
| 4-2-4 | Load Signal | Check Load Signal | ||||||
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