C1344

DTC C1344: Left TCS Channel Will Not Move:

DTC C1344, Part 2:

DTC C1344, Part 3:

Schematic:

Circuit Description
This DTC is designed to detect a stuck TCS motor or a seized TCS hydraulic modulator. During initialization or after a Traction Control System (TCS) cycle, the Electronic Brake Traction Control Module (EBTCM) commands the TCS motor in the reverse direction and the forward direction to ensure that the motor moves properly. If the TCS motor does not move, improper current feedback will be detected by the EBTCM, and a DTC will set.


Conditions for Setting the DTC
DTC C1344 can be set during initialization or after a TCS cycle. If the EBTCM detects a condition in which it cannot move the motor in either direction, a malfunction exists.


Action Taken When the DTC Sets
A malfunction DTC is stored, TCS is disabled, and the amber TCS warning indicator and the red BRAKE warning indicator are turned on.

Conditions for Clearing DTC
Condition for DTC is no longer present and the scan tool (CLEAR DTCs) function is used, or 100 drive cycles have passed with no DTCs detected.


Diagnostic Aids
An intermittent malfunction in this DTC may result from a mechanical part of the system that sticks, binds, or slips.

The frequency of the malfunction can be checked by using the enhanced diagnostic function of the scan tool, as described in the Scan Tool manual.

Any circuitry that is suspected of causing the intermittent complaint should be thoroughly checked for backed out terminals, improper mating, broken locks, improperly formed or damaged terminals, poor terminal to wiring connections or physical damage to the wiring hamess.