Actuator Test Mode (ATM)
NOTE:
This test can only be performed with Diagnostic Readout Box (C-4805).
- Put system into diagnostic test mode and wait for code 55 to appear on screen. Press "ATM" button on readout box to activate display. Hold "ATM" button down until desired ATM test code is displayed. Release "ATM" button.
- The SMEC will turn selected circuit 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 | Speed Control Activation |
| 09 | Alternator Field Control |
| 10 | Shift Indicator Light |
| 11 | EGR Diagnostic Solenoid |
NOTE:
See CHRYSLER MOTORS ENGINE CONTROL SYSTEM article in COMPUTERIZED ENGINE CONTROLS section for further testing procedures.