AutoCodes – Generic – B1829

B1829 Code - Wiper Rear High Limit Input Circuit Short To Ground

Quick Answer

The Body Control Module (BCM) monitors the Wiper Rear High Limit. Common causes include Faulty Wiper Rear Motor, Wiper Rear Motor harness is open or shorted, Wiper Rear 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: B1829 indicates Wiper Rear High Limit Input Circuit Short To Ground.
Common causes: Common causes include Faulty Wiper Rear Motor, Wiper Rear Motor harness is open or shorted, Wiper Rear 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.

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Code Popularity 5,679

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 Jul 02, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B1829 Description

The Body Control Module (BCM) monitors the Wiper Rear High Limit. The BCM sets the OBDII code when the Wiper Rear High Limit is not to factory specifications.

OBDII Code B1829 - Wiper Rear High Limit Input Circuit Short To Ground - AutoCodes.com — B1829 Code - Wiper Rear High Limit Input Circuit Short To Ground

What does this mean?

What are the Possible Causes of the DTC B1829?

Faulty Wiper Rear Motor
Wiper Rear Motor harness is open or shorted
Wiper Rear Motor circuit poor electrical connection
Faulty Body Control Module (BCM)

How to Fix the DTC B1829?

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 B1829 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.

Need more information about the B1829 code?

Need more information on how to fix the B1829 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B1829 code diagnosed by a professional: Find a repair shop in your area

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 B1829 Code

1. What are the common symptoms of OBDII code B1829 (Wiper Rear High Limit Input Circuit Short To Ground)?

- Common symptoms include the rear wiper not working properly, the rear wiper operating erratically, or the rear wiper not turning off.

2. What are the possible causes of OBDII code B1829?

- The code B1829 can be caused by a short to ground in the rear wiper high limit input circuit, a faulty rear wiper motor, or damaged wiring/connectors.

3. How can I diagnose OBDII code B1829 related to the rear wiper circuit?

- To diagnose code B1829, you can start by checking the wiring and connectors in the rear wiper circuit for any visible damage or shorts. Testing the rear wiper motor's functionality and inspecting its connections can also help pinpoint the issue.

4. Are there any DIY repair tips for resolving OBDII code B1829?

- DIY repair tips for code B1829 may include checking and repairing any damaged wiring or connectors in the rear wiper circuit, replacing a faulty rear wiper motor, and ensuring all electrical connections are secure.

5. Can OBDII code B1829 cause any safety concerns or affect the vehicle's overall operation?

- While OBDII code B1829 itself may not pose immediate safety concerns, a malfunctioning rear wiper due to this code can impact visibility during adverse weather conditions, potentially compromising driving safety.

6. Is it possible to reset OBDII code B1829 without addressing the underlying issue?

- Resetting the OBDII code B1829 without fixing the root cause, such as a short to ground in the rear wiper circuit, will likely result in the code reappearing once the issue persists.

7. What steps should I take if OBDII code B1829 keeps coming back after repairs?

- If code B1829 keeps reoccurring after repairs, it is essential to recheck the rear wiper circuit thoroughly, ensuring all components are properly functioning and all connections are secure.

8. Can extreme weather conditions contribute to triggering OBDII code B1829?

- Extreme weather conditions, such as heavy rain or snow, can potentially worsen the effects of a short to ground in the rear wiper circuit, leading to the triggering of code B1829.

9. Is it safe to continue driving with OBDII code B1829 without immediate repairs?

- It is not recommended to drive with OBDII code B1829 unaddressed, as it can lead to rear wiper failure, hindering visibility and potentially compromising driving safety, especially in adverse weather.

10. Are there any recalls or service bulletins related to OBDII code B1829 for specific vehicle models?

- It is advisable to check with the vehicle manufacturer or authorized service centers for any recalls or service bulletins related to OBDII code B1829 specific to your vehicle make and model.