What Does C1163 Mean?
This code indicates that the park brake switch #2 applied position circuit is shorted to ground. When the parking brake is in the applied position, the switch should send a specific signal to the module. A short to ground on this circuit causes a constant low signal, making the module unable to distinguish between applied and released states or falsely indicating the parking brake is always engaged.
Common Causes
35%
Chafed wiring from the park brake switch to the module, contacting a metal chassis component
25%
Failed park brake switch with internal short to ground
25%
Water intrusion at the switch connector causing corrosion and short to the grounded connector body
15%
Pinched wire under the vehicle near the parking brake mechanism
Diagnostic Steps
1
Step 1: Disconnect the park brake switch #2 and check if the code changes to an open circuit code. If so, the switch is internally shorted.
2
Step 2: With the switch disconnected, measure resistance from the signal wire to ground at the module connector. Low resistance confirms a harness short.
3
Step 3: Inspect the wiring from the switch to the module for abrasion, cuts, or compression points against metal surfaces.
4
Step 4: Test the switch by measuring resistance between signal and ground terminals. Compare to specifications.
5
Step 5: Repair or replace the faulty component, clear codes, and verify proper park brake status indication.
Estimated Repair Cost
$50 - $200
Parts + labor, varies by vehicle and location
This code indicates that the park brake switch #2 applied position circuit is shorted to ground. When the parking brake is in the applied position, the switch should send a specific signal to the module. A short to ground on this circuit causes a constant low signal, making the module unable to dist...
The most common cause of C1163 (Park Brake Switch # 2 Applied Circuit Short to Gnd) is: Chafed wiring from the park brake switch to the module, contacting a metal chassis component
Typical repair costs for C1163 range from $50 to $200, depending on the vehicle, location, and whether you do it yourself or go to a shop.
Parking brake status cannot be accurately determined by the module. Warning lamp behavior may be incorrect. Vehicle is safe to drive but indicator reliability is compromised. Repair within one week.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to C1163 to identify the root cause.
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Quick Info
Category
Chassis
System
Parking Brake System / Brake Warning Circuit
Difficulty
Type
Manufacturer
Recommended Tools
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