C0376 - Chassis Fault Code C0376 - Fyrhjulsdrift (AWD/4WD) & Fördelningslåda
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System
Chassis (Brakes, Steering, Suspension)
Related Fault Codes
Technical Description
DTC C0376 is triggered when the Transfer Case Control Module (TCCM) detects an open circuit, short to voltage/ground, or an erratic/missing frequency signal from the Front Propeller Shaft Speed Sensor. The TCCM continuously correlates front and rear driveshaft rotational speeds with ABS wheel speeds. When the front propshaft speed signal deviates beyond plausibility thresholds during vehicle motion, the TCCM disables AWD/4WD active torque transfer to prevent mechanical binding or driveline shock.
Possible Causes
1. Skadad eller ärgad kabelsats/kontaktstycke vid fördelningslådan (utsatt för smuts, fukt och värme)
2. Defekt främre kardanaxelhastighetsgivare (avbrott eller intern kortslutning i spolen)
3. Mekaniskt fel/ansamling av metallspån på givarens magnetiska spets eller skadat internt tonhjul/reluktorring i fördelningslådan
4. Internt kretsfel i Transfer Case Control Module (TCCM)
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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