![]() Please reference the latest version of PIT4595E and appropriate SI diagnostics for additional help. If the voltage is lower, then the updated calibration should still be installed, however additional diagnostics may be needed to correct the concern. If the voltage is higher, the updated calibration will help. The normal voltage reading is between 3.2-4.1 volts. The Tech 2 can be used to monitor the "TBCM Relay Feedback Signal" parameter located under Chassis/Trailer Brake Control Module/Data Display to help determine if there is a short to voltage. Updated TBCM calibrations have been released in TIS2WEB to improve TBCM diagnostics for a high resistant short to voltage concern. This concern may occur with or without a trailer connected to the vehicle. Abs Fault Problem Peo 206 Printable Columnar Paper With 12 Columns System Requirement For Media Shout 6. When checking for DTC's, C1112 and/or C1114 will be set in the Trailer Brake Control Module (TBCM). Some owners may comment of a Service Trailer Brake System message displayed on the DIC. The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI. Subject: Trailer Brake Message C1112 and/or C1114 (Reprogram TBCM)Įquipped With Intregrated Trailer Brake Control Module (RPO JL1) #PIT4842A: Trailer Brake Message C1112 And/Or C1114 (Reprogram TBCM) - keywords inop inoperative int intermittent program tow - (Apr 8, 2010) This of course is only a starting point as there could be other issues also. Sorry for the delay but here's the information.
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