LEMON Manuals: Even more car manuals for everyone
Home >> Jeep >> 2014 >> Wrangler Sahara, Standard Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 105 ((Antilock Brake System (Abs) - Electrical Diagnostics)) >> DTC Troubleshooting >> C121C-00-Torque Request Signal Denied >> Diagnostic Test

Diagnostic Test

WARNING: This page is about a different car, the 2016 Dodge Journey and 2015 Dodge Journey. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK FOR AN ACTIVE DTC 
    NOTE:

    This DTC must be active for the results of this test to be valid and this DTC may set while driving under severe load conditions.

    1. Turn the ignition on.
    2. With the scan tool, read ABS DTCs and record on the repair order.
    3. With the scan tool, read and record Freeze Frame information.
    4. With the scan tool, erase DTCs.
    5. Cycle the ignition switch from off to on.
    6. Start the engine and raise the engine RPM to 2500.
    7. With the scan tool, read ABS DTCs.

      Is the DTC active?

      Yes 

      • Go To  2

      No 

  2. CHECK ENGINE IDLE 
    1. Allow the engine to idle.

      Does the engine run rough at idle?

      Yes 

      No