C1117 Cadillac Code - Manual Trailer Brake Apply Request Signal 2 Malfunction
Quick Answer
The trailer brake control system has a control panel with the trailer gain and manual apply switches. Common causes include Faulty Trailer Brake Control Switch, Trailer Brake Control Switch harness is open or shorted, Trailer Brake Control Switch circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- C1117 Cadillac indicates Manual Trailer Brake Apply Request Signal 2 Malfunction.
- Common causes
- Common causes include Faulty Trailer Brake Control Switch, Trailer Brake Control Switch harness is open or shorted, Trailer Brake Control Switch circuit poor electrical connection.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Code C1117 Cadillac Description
What are the Possible Causes of the DTC C1117 Cadillac?
- Faulty Trailer Brake Control Switch
- Trailer Brake Control Switch harness is open or shorted
- Trailer Brake Control Switch circuit poor electrical connection
- Faulty Chassis Control Module-Auxiliary
How to Fix the DTC C1117 Cadillac?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the C1117 Cadillac code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
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Frequently Asked Questions about C1117 Cadillac Code
1. What does the OBDII code C1117 mean on a Cadillac?
C1117 indicates a malfunction in the Manual Trailer Brake Apply Request Signal 2, which is part of the trailer brake control system.
2. What are the common symptoms of code C1117 on a Cadillac?
Symptoms may include the trailer brake system not functioning properly, a warning light on the dashboard, or difficulty manually applying trailer brakes.
3. What causes the C1117 code to appear?
The code can be caused by a faulty trailer brake switch, damaged wiring or connectors, a malfunctioning trailer brake control module, or issues with the manual brake apply signal circuit.
4. Can I still drive my Cadillac if the C1117 code is present?
Yes, you can drive the vehicle, but towing a trailer may be unsafe as the trailer brakes may not work properly.
5. How do I diagnose the C1117 code on a Cadillac?
Diagnosis involves checking the trailer brake switch, inspecting the wiring and connectors for damage, and testing the trailer brake control module for proper operation.
6. How can I fix the C1117 code on my Cadillac?
Repairs may include replacing a faulty trailer brake switch, repairing or replacing damaged wiring, cleaning or reconnecting connectors, or replacing the trailer brake control module if necessary.
7. How much does it cost to repair a C1117 code on a Cadillac?
Costs vary depending on the issue, but replacing a trailer brake switch can cost $50–$150, while repairing wiring or replacing the control module may cost $200–$600.
8. Can a faulty trailer brake control module trigger the C1117 code?
Yes, a malfunctioning trailer brake control module can send incorrect signals and trigger the C1117 code.
9. Will clearing the code fix the C1117 issue?
Clearing the code will not fix the underlying problem; the cause of the malfunction must be identified and repaired.
10. Can bad trailer wiring cause the C1117 code?
Yes, damaged or corroded trailer wiring can disrupt the manual brake apply signal and cause the C1117 code.
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