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Actuator Test Mode (ATM)

NOTE: This test can only be performed with the Diagnostic Readout Tool (C-4805).
  1. Put system into Diagnostic Test Mode and wait for code 55 to appear on display screen. Press ATM button on tool to activate display. If a specific ATM test is desired, hold ATM button down until test code appears.
  2. The computer will continue to turn the selected circuit on and off for up to 5 minutes or until ATM button is pressed or ignition is turned off. If the ATM button is not pressed, the computer will continue to cycle the selected circuit for 5 minutes and then shut the system off.
ACTUATOR TEST DISPLAY CODES

Code Test Description
01 Spark Activation
02 Injector Activation
03 AIS Activation
04 Radiator Fan Activation
05 A/C Cut-Out Relay Activation
06 ASD Relay Activation
07 Purge Solenoid Activation
08 EGR Solenoid Activation
09 Wastegate Solenoid Activation
10 Barometric Read Solenoid Activation