Park Brake Switch # 2 Applied Circuit Short to Gnd
Code C1163 indicates a diagnostic fault in the Chassis Systems (Brakes & Suspension) (Park Brake Switch # 2 Applied Circuit Short to Gnd). Connect an OBD2 scanner to verify freeze frame data, then test circuit voltage and vacuum connections before replacing components.
Inspect the electrical harness and ground connection related to C1163. Clear the code with an OBD2 scanner; if it returns, perform a multimeter resistance check on the primary sensor.
Symptoms Associated with C1163
Drivers typically observe the following symptoms when the ECM flags C1163:
Common Root Causes & Statistical Probability Matrix
Statistical breakdown of what triggers this code based on automotive repair shop data.
Step-by-Step Diagnostic & Repair Procedure
Follow this logical order to isolate and repair C1163 before spending money on costly parts.
Step 1: Scan and Record Freeze Frame Data
Connect an OBD2 scanner, record engine RPM, coolant temp, and secondary DTCs associated with C1163.
Step 2: Visual Inspection
Inspect wiring harnesses, pins, and vacuum lines related to the Chassis Systems (Brakes & Suspension) for chafing, oil contamination, or burn marks.
Step 3: Multimeter / Component Verification
Measure 12V reference power, ground continuity, and signal voltage against factory service manual specifications for C1163.