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Home >> Jeep >> 2014 >> Wrangler Sahara, Standard Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 249 (3.6L - DTCS P2135 To U1418) >> Diagnosis And Testing >> U0121-Lost Communication With Abs >> Diagnostic Test

Diagnostic Test

WARNING: This page is about a different car, the 2016 Jeep Wrangler and 2015 Jeep Wrangler. However, it is still accessible from the selected car via links, so may be relevant.

CHECK FOR AN ACTIVE DTC 

  1. Turn the ignition on.
  2. With the scan tool, read DTCs and record on the repair order.

    Is the DTC active or pending?

    Yes 

    • Refer to DIAGNOSIS AND TESTING and perform the U0121-Lost Communication with Anti-Lock Brake Module diagnostic procedure.

    No 

    • Refer to  DIAGNOSIS AND TESTING  and perform the Stored Lost Communication DTCs diagnostic procedure.
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