Sunday, June 9, 2019

2019 Cadillac Truck Escalade AWD V8-6.2L Diagnostic Instructions Page 92


鈬揑f infinite resistance



4.3Test for less than 2 锟?in the 10 V reference circuits end to end.



-If 2 锟?or greater, repair the open/high resistance in the circuit.



-If less than 2 锟?replace the Assist Step Control Module.



-



If greater than 11 V



4.1Ignition OFF, disconnect the X2 harness connector at the Assist Step Control Module control module, ignition ON.



4.2Test for less than 1 V between the following 10 V reference circuit and ground.



-X2 Terminal A Running Board - Left



-X2 Terminal B Running Board - Right



-If 1 V or greater, repair the short to voltage on the appropriate circuit.



-If less than 1 V, replace the Assist Step Control Module.



锟?If between 9-11 V



5.Ignition OFF. Connect Running Board - Left actuator. Ignition ON.



6.Test for 9 - 11 V between the 10 V reference circuit terminal D at the right side and ground while commanding the actuator with the scan



tool.



-



If not between 9-11 V



Test or replace Running Board - Left actuator.



锟?If between 9-11 V



7.Ignition OFF. Disconnect Running Board - Left, connect Running Board - Right. Ignition ON.



8.Test for 9 - 11 V between the 10 V reference circuit terminal D at the left side and ground while commanding the actuator with the scan tool.



-



If not between 9-11 V



Test or replace Running Board - Right actuator.



锟?If between 9-11 V



9.Test for greater than 9 V between the appropriate signal circuit terminal E and ground while commanding the actuator with the scan tool.



-



If not greater than 9 V



9.1Ignition OFF, disconnect the X2 harness connector at the Assist Step Control Module.



9.2Test for infinite resistance between the following signal circuit terminals and ground.



-X2 Terminal C Running Board - Left



-X2 Terminal D Running Board - Right



-If less than infinite resistance, repair the short to ground on the appropriate circuit.



鈬揑f infinite resistance



9.3Test for less than 2 锟?in the signal circuits end to end.



-If 2 锟?or greater, repair the open/high resistance in the circuit.



-If less than 2 锟?replace the Assist Step Control Module.



-



If 9 V or greater



10.Connect a test lamp between the control circuit terminal A and the control circuit terminal B.



11.Verify the test lamp turns on and off while commanding the appropriate board to Extend and Retract with a scan tool.

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