Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This code means that the car's computer found a problem when checking the cruise control system. It's like when your game console checks itself and finds an error in the controller.
The vehicle's control module performs a self-check to ensure all systems, including the cruise control, are functioning properly. If it detects an issue, it triggers this code.
The P16A6 code is set when the powertrain control module (PCM) or another control module detects a malfunction within the cruise control system during its self-test procedures. This could involve a failure in communication, sensor readings, or actuator performance.
• Cruise control not engaging
• Cruise control disengaging unexpectedly
• Warning light on the dashboard
• Faulty cruise control switch
• Wiring issues or poor connections
• Defective control module
PCM: Powertrain Control Module
OBD-II: On-Board Diagnostics, Second Generation
• Use an OBD-II scanner to confirm the code.
• Inspect the cruise control switch and wiring for damage.
• Check for additional codes that might indicate related issues.
• Replace the faulty cruise control switch.
• Repair or replace damaged wiring or connectors.
• Reprogram or replace the control module if necessary.
• OBD-II scanner
• Multimeter
• Screwdriver set
$100 - $500
Moderate
• Chevrolet Silverado
• Ford F-150
• Toyota Camry
• Regularly inspect cruise control components.
• Ensure all electrical connections are secure.
• Avoid using cruise control in adverse conditions.
Control Module Issue
• If the cruise control is not working, avoid using it until repaired.
• Consult a professional mechanic if unsure about the diagnosis.
Check with the vehicle manufacturer for warranty coverage on control module issues.
This code has been associated with issues in vehicles with complex electronic systems, often requiring updates or replacements of control modules.
Moderate – It is important to address this issue to ensure cruise control functionality and overall vehicle safety.
Driving with a malfunctioning cruise control system can lead to unexpected vehicle behavior. Always maintain control of the vehicle manually.
• Vehicle at operating temperature
• Cruise control system activated
The cruise control module is typically located near the steering column or integrated into the main control module under the dashboard.
Q: Can I drive my car with this code?
A: Yes, but the cruise control may not function properly, so use caution.
Q: Will this code affect my car's performance?
A: It primarily affects the cruise control system, but other performance issues can arise if not addressed.
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