AutoCodes – Cadillac – B3197 Cadillac

B3197 Cadillac Code - Right Rear Window Down Switch Circuit Low

Quick Answer

This Diagnostic Trouble Code (DTC) is generated by a passenger door window switch or a passenger door window switch circuit. Common causes include Faulty Right Rear Window Switch, Right Rear Window Switch harness is open or shorted, Right Rear Window 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: B3197 Cadillac indicates Right Rear Window Down Switch Circuit Low.
Common causes: Common causes include Faulty Right Rear Window Switch, Right Rear Window Switch harness is open or shorted, Right Rear Window 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 450

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 Mar 04, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B3197 Cadillac Description

This Diagnostic Trouble Code (DTC) is generated by a passenger door window switch or a passenger door window switch circuit. Each passenger door window switch is mounted to the trim panel of the appropriate passenger door. The circuits and contacts of each passenger door window switch receive battery voltage and ground from the corresponding door module, i.e. Front Passenger Door Module (PDM), Left Rear Door Module (LRDM), or Right Rear Door Module (RRDM). When a passenger door window switch is operated, the switch contacts close and the associated door module interprets the flow of voltage as a specific request to move the window up or down. If conditions are correct for window operation to occur, the door module then powers the associated window motor and circuits to move the window.

OBDII Code B3197 Cadillac - Right Rear Window Down Switch Circuit Low - AutoCodes.com — B3197 Cadillac Code - Right Rear Window Down Switch Circuit Low

What does this mean?

What are the Possible Causes of the DTC B3197 Cadillac?

Faulty Right Rear Window Switch
Right Rear Window Switch harness is open or shorted
Right Rear Window Switch circuit poor electrical connection
Faulty Right Rear Door Module (RRDM)

How to Fix the DTC B3197 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 B3197 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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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 B3197 Cadillac Code

1. What does the OBDII code B3197 mean on a Cadillac?

B3197 indicates a problem with the right rear window down switch circuit, specifically that it is reading a low voltage.

2. What are the common symptoms of code B3197 in a Cadillac?

Symptoms may include the right rear window not rolling down, intermittent window operation, or an illuminated check engine or body control module warning light.

3. What causes the B3197 code on a Cadillac?

Common causes include a faulty window switch, damaged wiring or connectors, a malfunctioning window motor, or a problem with the body control module (BCM).

4. Can a faulty window motor trigger the B3197 code?

Yes, a faulty window motor can cause the circuit to draw excessive current or fail to operate, which may trigger the code.

5. How do you diagnose the B3197 code?

Diagnosis involves inspecting the right rear window switch, testing the wiring and connectors for continuity, and using a scan tool to check BCM communication.

6. Is the B3197 code specific to Cadillacs?

While the code may appear on other GM vehicles, its description and troubleshooting steps are specific to Cadillac models.

7. Can I still drive my Cadillac with the B3197 code?

Yes, this code typically affects window operation and does not impact vehicle drivability, but it should be addressed to restore functionality.

8. How is the B3197 code fixed?

Repairs may include replacing the window switch, repairing damaged wiring, replacing a faulty window motor, or reprogramming the BCM if necessary.

9. How much does it cost to fix the B3197 code on a Cadillac?

The repair cost can vary, but replacing a window switch or fixing wiring issues typically ranges from $100 to $300, depending on labor and parts.

10. Can clearing the B3197 code solve the problem?

Clearing the code may temporarily reset the system, but if the underlying issue is not resolved, the code will likely reappear.

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