Key ON Engine Running (KOER) Self-Test

Generic Scan Tool in Enhanced Diagnostic Test Mode-KOER Self-Test

A string of characters must be entered into the generic scan tool to perform KOER Self-Test. The generic keystroke entry for this specific function is provided below. Also, refer to the scan tool manufacturer's instructions for additional information.

- Enter the following string to initiate KOER Self-Test:

- Enter the four strings separately and in the order shown.

- All string ID numbers (first field) must match the order shown.

- After the test begins, cycle Brake ON/OFF (BOO), 4x4 Low (4X4L), Power Steering Pressure (PSP) and Transmission Control (TCS) switches (if equipped).

- 08,3E,22,C4103382,,9E00445443287329208042208062208082A851FF,34

- 07,32,22FF,C410220202,,9E00434E54208061A9610008,F2

- 06,32,22,C410328200,,9E0057414954208081A1816107,68

- 05,32,22,C4103182,,9E005354415254208081A1810006,5D