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Home >> Alfa Romeo >> 2021 >> Stelvio Ti >> Repair and Diagnosis >> Brakes >> Anti-Lock Brakes >> Anti-Lock Brakes (Abs) - DTCS C104A-49 To C1403-19 >> DTC Troubleshooting >> C1217-29-Reverse Gear Switch-Signal Signal Invalid >> Possible Causes

Possible Causes

Possible Causes
TRANSMISSION
REVERSING SWITCH CONNECTIONS
REVERSING SWITCH WIRING
REVERSE GEAR SWITCH
CONNECTIONS ON AUTOMATIC TRANSMISSION CONTROL UNIT
AUTOMATIC TRANSMISSION CONTROL UNIT WIRING
ANTI-LOCK BRAKE SYSTEM (ABS) MODULE
AUTOMATIC TRANSMISSION CONTROL UNIT

Always perform the PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE before proceeding. Refer to  STANDARD PROCEDURE  .