AutoCodes – GMC – B2232 GMC

B2232 GMC Code - Mirror Up Switch Fault

Quick Answer

The driver door switch signal circuits provide inputs to the Driver Door Module (DDM) when the mirror switch is activated. Common causes include Faulty Mirror Up Switch, Mirror Up Switch harness is open or shorted, Mirror Up 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: B2232 GMC indicates Mirror Up Switch Fault.
Common causes: Common causes include Faulty Mirror Up Switch, Mirror Up Switch harness is open or shorted, Mirror Up 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.

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Code Popularity 591

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Oct 10, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B2232 GMC Description

The driver door switch signal circuits provide inputs to the Driver Door Module (DDM) when the mirror switch is activated. These inputs allow the DDM to detect a mirror direction request. The DDM provides both power and ground to the mirror switches. When a mirror switch is activated to the right, left, up or down position, ground is supplied through the mirror switch to the signal circuit, which is pulled low. When the DDM detects low voltage on the signal circuit, it will command the mirror to rotate in the direction selected. The DDM controls passenger mirror functions by sending mirror control messages to the Passenger Door Module (PDM) on the serial data line and the PDM then commands the passenger mirror. The DDM monitors both the driver and passenger mirror switch signal circuits to determine how long a ground has been applied. If the DDM detects that a ground is applied for greater than 20 seconds, a Diagnostic Trouble Code (DTC) is set.

OBDII Code B2232 GMC - Mirror Up Switch Fault - AutoCodes.com — B2232 GMC Code - Mirror Up Switch Fault

What does this mean?

What are the Possible Causes of the DTC B2232 GMC?

Faulty Mirror Up Switch
Mirror Up Switch harness is open or shorted
Mirror Up Switch circuit poor electrical connection
Faulty Driver Door Module (DDM)

How to Fix the DTC B2232 GMC?

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 B2232 GMC 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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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about B2232 GMC Code

1. What are the common symptoms of OBDII code B2232 GMC (Mirror Up Switch Fault)?

- The common symptoms include the power mirror switch not functioning properly, inability to adjust the mirror position, or the power mirror getting stuck in one position.

2. What are the possible causes of OBDII code B2232 GMC?

- The code B2232 GMC is typically triggered by a faulty mirror up switch, damaged wiring or connections related to the switch, or a malfunction in the mirror control module.

3. How can I diagnose the Mirror Up Switch Fault causing OBDII code B2232 GMC?

- To diagnose the issue, start by checking the power mirror switch for proper functionality, inspecting the wiring and connections for any damage, and using a scan tool to retrieve the trouble codes from the mirror control module.

4. Can I repair the Mirror Up Switch Fault triggering OBDII code B2232 GMC myself?

- If you have experience with automotive electrical systems, you may be able to repair the issue yourself by replacing the faulty mirror up switch or repairing any damaged wiring. However, it is recommended to consult a professional if you are unsure.

5. How important is it to address OBDII code B2232 GMC promptly?

- While the vehicle may still be drivable with the Mirror Up Switch Fault, it is important to address the issue promptly to ensure proper functionality of the power mirrors and to prevent any potential safety hazards on the road.

6. Can a faulty mirror control module trigger OBDII code B2232 GMC?

- Yes, a malfunctioning mirror control module can potentially trigger the B2232 GMC code if it is unable to communicate properly with the mirror up switch or if there are internal faults within the module.

7. Are there any temporary fixes for OBDII code B2232 GMC until I can get it repaired?

- Temporary fixes such as manually adjusting the mirrors or disconnecting the power source to prevent further damage may be possible, but it is recommended to address the underlying issue as soon as possible for a permanent solution.

8. Will resetting the OBDII codes make the Mirror Up Switch Fault go away?

- Resetting the codes may temporarily turn off the Check Engine Light, but if the underlying issue causing the Mirror Up Switch Fault is not addressed, the code is likely to reappear after some time.

9. Can extreme weather conditions affect the Mirror Up Switch Fault triggering OBDII code B2232 GMC?

- Extreme weather conditions, such as extreme heat or cold, can potentially affect the electrical components involved in the mirror up switch system, leading to intermittent faults or malfunctions triggering the B2232 GMC code.

10. How much does it typically cost to repair OBDII code B2232 GMC (Mirror Up Switch Fault) at a repair shop?

- The cost of repairing the Mirror Up Switch Fault triggering the B2232 GMC code can vary depending on the extent of the issue, parts needed for replacement, labor costs, and the specific repair shop. It is advisable to obtain quotes from different shops for an accurate estimate.