AutoCodes.com | All About OBDII Engine Codes
AutoCodes - Generic - B1C77

B1C77 Code - Rear Wiper Relay Circuit

- Code Popularity: 1,879 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
Table of contents
Share on Facebook   Share on Twitter   Share on Linkedin

What are the Possible Causes of the DTC B1C77?

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
  • Faulty Rear Wiper Relay
  • Rear Wiper Relay harness is open or shorted
  • Rear Wiper Relay circuit poor electrical connection
⚠ Does your Car have Safety Recalls? → Check here

How to Fix the DTC B1C77?

Review the 'Possible Causes' mentioned above and visually examine the corresponding wiring harness and connectors. Ensure to check for any damaged components and inspect the connector pins for signs of being broken, bent, pushed out, or corroded.

Code Tech Notes

B1C77:11 Rear Wiper Relay Circuit Short To Ground
B1C77:13 Rear Wiper Relay Circuit Open
B1C77:19 Rear Wiper Relay Circuit Current Above Threshold

Search for B1C77 Questions and Answers: Search here →

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B1C77 code, it typically requires 1.0 hour of labor. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. It is common for most auto repair shops to charge between $75 and $150 per hour.

What are Code Possible Symptoms?

  • Engine Light ON (or Service Engine Soon Warning Light)

Code B1C77 Description

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

OBDII Code B1C77 - Rear Wiper Relay Circuit - AutoCodes.com
B1C77 Code - Rear Wiper Relay Circuit

Need More Information on the Code?

Need more information on how to fix the B1C77 code? Get Access to Factory Service Manuals

Information for Specific Makes

Need Help with the Code?

Get the B1C77 code diagnosed by a professional: Find a repair shop in your area

Code B1C77 comments

Help us improve AutoCodes.com. Leave a comment below or tell us if the information above helps you fix the code. What are the symptoms on your vehicle for the B1C77 code? Have you replaced any parts?
Any information is appreciated. Thanks