C0194 - Chassis Fault Code C0194 - Traction Control / Stabilitetskontroll (ESP/ESC)
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System
Chassis (Brakes, Steering, Suspension)
Related Fault Codes
Chassis Fault Code C0101 - Traction Control / Stabilitetskontroll (ESP/ESC)
Chassis Fault Code C0102 - Traction Control / Stabilitetskontroll (ESP/ESC)
Chassis Fault Code C0103 - Traction Control / Stabilitetskontroll (ESP/ESC)
Chassis Fault Code C0104 - Traction Control / Stabilitetskontroll (ESP/ESC)
Technical Description
DTC C0194 indicates a circuit or communication malfunction in the Traction Control System (TCS) torque request/inhibition line between the Engine Control Module (ECM/PCM) and the Electronic Brake Control Module (EBCM/ESP). The DTC is set when the EBCM detects an implausible pulse-width modulation (PWM) signal, line open/short circuit, or corrupted CAN message frame related to engine torque reduction commands.
Possible Causes
1. Skadat eller korroderat kablage/kontaktstycke mellan motorstyrdon (ECM) och bromsstyrdon (EBCM).
2. Internt fel eller spänningsbortfall i bromsstyrdonet (EBCM/ABS-modul).
3. Defekt motorstyrdon (ECM/PCM) som inte kan processa eller svara på momentbegränsningsbegäran.
4. Kommunikationsstörningar på Chassi-CAN-bussen orsakade av extern komponent eller kabelbrott.
Recommended Solution
Workflow
Mechanic's Tip
Before replacing expensive components, always double-check wiring and connections. 80% of all sensor faults are actually due to corroded contacts or broken wires.
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