Actuator Test Mode (ATM)
NOTE:
This test can only be performed with Diagnostic Readout Box (C-4805).
- Put system into diagnostic test mode. Make sure read/hold button on readout box is set to "READ" position. After display of Code 55, hold ATM button down until desired ATM test code is displayed. Release ATM button.
- Logic module will turn selected circuit (except AIS) on and off at 2 second intervals for 5 minutes. AIS is turned on and off every 4 seconds for one step open and one step closed. Pressing ATM button again will switch circuits displayed. Turning off ignition will also turn test off.
ACTUATOR TEST DISPLAY CODES
| Code | Test Description |
|---|---|
| 01 | Spark Activation |
| 02 | Injector Activation |
| 03 | AIS Activation |
| 04 | Radiator Fan Relay Activation |
| 05 | A/C WOT Cut-Out Relay Activation |
| 06 | ASD Relay Activation |
| 07 | Purge Solenoid Activation |
| 08 | Shift Indicator Light |
| 09 | Alternator Field Control |