C1162 — Park Brake Switch #2 Released Circuit Failure #

Note: The wording for this DTC may vary depending on your vehicle’s manufacturer (OEM).

• Ford: Park Brake Switch #2 Circuit Failure
• Jaguar/Land Rover: Parking Brake Switch 2 – Circuit Malfunction
• Mazda: Park Brake Switch 2 Released Circuit Fault
• Lincoln: Park Brake Switch #2 Released Circuit Failure

Summary of DTC C1162 #

The C1162 code signals an issue with the Park Brake Switch #2 Released Circuit. This switch is a critical part of the parking brake system, informing the vehicle’s control module when the parking brake is released. If the circuit fails, the system cannot accurately determine the brake’s status. As a result, safety features and warning lights may be affected. While C1162 is not always immediately dangerous, it should not be ignored.

Common Symptoms for Code C1162 #

When the C1162 code is present, you might notice several symptoms. These can range from mild warning alerts to more noticeable changes in vehicle behavior, especially with features dependent on parking brake status.

• ABS (Anti-lock Braking System) or traction control warning light illuminated
• Parking brake indicator stays on or flashes
• Unable to disengage electronic parking brake
• Vehicle may not release from Park (on some models)
• Warning messages on the dashboard related to the brake system

Most Likely Causes for Code C1162 #

The causes of the C1162 code tend to follow a pattern, allowing technicians to prioritize their diagnostic approach. Most issues arise from electrical faults or physical wear in the brake switch circuit.

1. Faulty park brake switch #2 (mechanical or electrical failure)
2. Damaged or corroded wiring/connectors in the switch circuit
3. Faulty or misadjusted parking brake mechanism
4. Blown fuse related to the parking brake system
5. Faulty ABS/BCM (Body Control Module) or related control unit

Step-by-Step Diagnosis for Code C1162 #

Proper diagnosis follows a structured process to avoid unnecessary part replacements. Here’s a recommended workflow for addressing C1162:

• Verify code with a professional scan tool; check for related codes.
• Visually inspect the park brake switch and its wiring for damage, corrosion, or loose connections.
• Test the park brake switch #2 for proper operation using a digital multimeter (check for continuity and correct voltage when the switch is activated/released).
• Inspect the parking brake mechanism for mechanical binding or misadjustment.
• Check related fuses and relays; replace if faulty.
• If all other components check out, test the control module’s input/output at the switch circuit.
• Clear the code and perform a system test to confirm proper repair.

Possible Repairs for Code C1162 #

Once the root cause is identified, repairs should specifically address the faulty component or connection. Here are typical solutions linked to the common causes:

• Replace the faulty park brake switch #2
• Repair or replace damaged wiring/connectors in the park brake circuit
• Adjust or repair the parking brake mechanism
• Replace blown fuse or faulty relay in the brake system
• If necessary, repair or reprogram the ABS/Body Control Module (rare)

Is It Safe to Drive With Code C1162? #

Driving with code C1162 is generally not recommended. While the vehicle may seem to operate normally, the inability to accurately detect the parking brake status can compromise safety systems. Features like hill start assist or automatic brake release may not function, increasing the risk of rollaway or improper warning alerts. For your safety, have the issue diagnosed and repaired as soon as possible.

Vehicles Most Commonly Affected by Code C1162 #

C1162 is most often seen in vehicles from specific manufacturers and platforms that utilize electronic or advanced parking brake systems. These typically include:

• Ford (especially Fusion, Focus, F-150, Explorer)
• Lincoln (MKZ, Navigator, Continental)
• Jaguar/Land Rover (Range Rover, Discovery, XF, XE)
• Mazda (6, CX-5, CX-9 with electronic parking brakes)

Common Mistakes & Best Practices for Code C1162 #

Diagnosing C1162 can be straightforward, but some pitfalls often lead to wasted time or repeat failures. Keep these best practices in mind:

• Do not replace the park brake switch without first testing the wiring and connections.
• Avoid clearing the code before confirming the root cause; it may return and mask intermittent faults.
• Always check for TSBs (Technical Service Bulletins) from the OEM for known issues.
• Verify proper brake operation after any repair, including mechanical adjustment.
• Use OEM parts for the park brake switch and related components to ensure correct function.

Code C1162 Express FAQ #

Here are quick answers to some of the most common questions drivers have about code C1162:

• Q: Will my car fail inspection with code C1162 set?
  A: In most states, an active brake or ABS warning light will cause a failed inspection. It’s best to address the code before your next check.
• Q: Can I bypass the park brake switch to clear the code?
  A: No. Bypassing or shorting the switch can disable safety features and may cause further electrical faults or control module damage.