B1600 Cadillac Code - Mirror Motor Vertical Circuit
Quick Answer
The Driver Door Module (DDM) or Passenger Door Module (PDM) controls the mirror horizontal and vertical motors through the use of bi-directional motor controls. Common causes include Faulty Driver/Passenger Rearview Mirror Motor, Driver/Passenger Rearview Mirror Motor harness is open or shorted, Driver/Passenger Rearview Mirror Motor 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
- B1600 Cadillac indicates Mirror Motor Vertical Circuit.
- Common causes
- Common causes include Faulty Driver/Passenger Rearview Mirror Motor, Driver/Passenger Rearview Mirror Motor harness is open or shorted, Driver/Passenger Rearview Mirror Motor 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 B1600 Cadillac Description
Horizontal controls operate in the same manner with the mirror motor horizontal control circuit supplying voltage or ground and the mirror motor common control circuit supplying voltage or ground to the mirror horizontal motor when the mirror is commanded right and left.
What are the Possible Causes of the DTC B1600 Cadillac?
- Faulty Driver/Passenger Rearview Mirror Motor
- Driver/Passenger Rearview Mirror Motor harness is open or shorted
- Driver/Passenger Rearview Mirror Motor circuit poor electrical connection
- Faulty Driver Door Module (DDM) or Passenger Door Module (PDM)
How to Fix the DTC B1600 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.
Code Tech Notes
B1600 02 Mirror Motor Vertical Circuit Short to Ground
B1600 04 Mirror Motor Vertical Circuit Open
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the B1600 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 B1600 Cadillac Code
1. What are the common symptoms of OBDII code B1600 Cadillac Mirror Motor Vertical Circuit?
The common symptoms include malfunctioning power mirrors, inability to adjust mirror vertically, and illumination of the mirror adjustment control light on the dashboard.
2. What causes the OBDII code B1600 Cadillac Mirror Motor Vertical Circuit?
The code B1600 is usually triggered by a faulty mirror motor, damaged wiring harness, loose connections, or a malfunctioning mirror switch.
3. How can I diagnose the OBDII code B1600 in my Cadillac?
Diagnosing the B1600 code involves checking the mirror motor for proper operation, inspecting the wiring harness for any damage or loose connections, and testing the mirror switch for functionality.
4. Can I continue driving my Cadillac with the OBDII code B1600 Mirror Motor Vertical Circuit?
While the vehicle is still safe to drive with this code, it is recommended to address the issue promptly to ensure proper functioning of the mirror adjustment system.
5. How can I repair the OBDII code B1600 Cadillac Mirror Motor Vertical Circuit?
Repairing the B1600 code involves replacing the faulty mirror motor, repairing or replacing damaged wiring, securing loose connections, or replacing the mirror switch if necessary.
6. Will resetting the OBDII code B1600 resolve the issue?
Resetting the code may temporarily turn off the warning light, but it will not fix the underlying problem. It is important to diagnose and repair the root cause of the issue.
7. Are there any DIY tips for fixing the OBDII code B1600 in my Cadillac?
DIY tips include checking and securing any loose connections, inspecting the wiring harness for damage, and testing the mirror motor and switch for functionality before seeking professional help.
8. How much does it cost to repair the OBDII code B1600 Cadillac Mirror Motor Vertical Circuit?
The cost of repair can vary depending on the specific issue causing the code. Replacing a mirror motor or repairing wiring may cost anywhere from $100 to $300, while labor costs will vary based on the mechanic's rates.
9. Can extreme weather conditions trigger the OBDII code B1600 in a Cadillac?
Yes, extreme weather conditions such as excessive heat or moisture can potentially damage the mirror motor, wiring, or switch, leading to the triggering of the B1600 code.
10. Is it necessary to visit a dealership for repairing the OBDII code B1600 in my Cadillac?
While visiting a dealership is an option, any qualified mechanic or auto repair shop should be able to diagnose and repair the OBDII code B1600 Mirror Motor Vertical Circuit in your Cadillac.
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