AutoCodes – Generic – B0775:06

B0775:06 Code - Four Wheel Drive High Indicator Circuit Short to Ground or Open

Quick Answer

The Four Wheel Drive HI indicator circuit consists of a Light Emitting Diode (LED) feed circuit, a LED, and a LED control circuit. Common causes include Faulty Transfer Case Select Switch, Transfer Case Select Switch harness is open or shorted, Transfer Case Select Switch circuit poor electrical connection. Severity is Moderate - service should be scheduled soon. The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.

What it means: B0775:06 indicates Four Wheel Drive High Indicator Circuit Short to Ground or Open.
Common causes: Common causes include Faulty Transfer Case Select Switch, Transfer Case Select Switch harness is open or shorted, Transfer Case Select Switch circuit poor electrical connection.
Severity: Moderate - service should be scheduled soon.
Can I drive?: The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.

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Code Popularity 1,169

How popular is this code, among other codes? Low

Repair Importance Level

Moderate (Service soon) (2 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Nov 18, 2024

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B0775:06 Description

The Four Wheel Drive HI indicator circuit consists of a Light Emitting Diode (LED) feed circuit, a LED, and a LED control circuit. The indicator dimming control circuit is the LED feed circuit and continuously supplies B+ to the 2WD HI, 4WD Auto, 4WD HI and 4WD LO LEDs. When the 4WD HI mode has been selected by the driver, the Transfer Case Shift Control Module (TCCM) provides a ground through the 4 HI indicator control circuit illuminating the LED.
The TCCM tests the 4WD HI indicator circuit for unexpected voltage by monitoring the B+ supplied by the BCM on the indicator dimming control circuit by grounding the 4WD HI indicator control circuit for 2 seconds during the Bulb Test at key ON.
The Diagnostic Trouble Code (DTC) will be set when the TCCM detects 1.6 V or less for 1.5 seconds on the 4WD HI indicator control circuit when the 4WD HI indicator is commanded OFF.

OBDII Code B0775:06 - Four Wheel Drive High Indicator Circuit Short to Ground or Open - AutoCodes.com — B0775:06 Code - Four Wheel Drive High Indicator Circuit Short to Ground or Open

What does this mean?

What are the Possible Causes of the DTC B0775:06?

Faulty Transfer Case Select Switch
Transfer Case Select Switch harness is open or shorted
Transfer Case Select Switch circuit poor electrical connection
Faulty Transfer Case Shift Control Module (TCCM)

How to Fix the DTC B0775:06?

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 B0775:06 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 B0775:06 Code

1. What are the common symptoms of OBDII code B0775:06?

- The common symptoms include the Four Wheel Drive (4WD) High indicator light staying on or not functioning properly.

2. What causes OBDII code B0775:06 to trigger?

- This code is triggered when there is a short to ground or an open circuit in the Four Wheel Drive High indicator circuit.

3. How can I diagnose the issue related to code B0775:06?

- You can start by visually inspecting the wiring and connectors related to the Four Wheel Drive High indicator circuit. Use a multimeter to check for continuity and shorts.

4. Can a blown fuse cause OBDII code B0775:06?

- Yes, a blown fuse in the Four Wheel Drive High indicator circuit can also trigger this code.

5. What are the repair options for OBDII code B0775:06?

- Repair options include fixing any damaged wiring, replacing faulty connectors, and ensuring proper grounding in the circuit.

6. Is it safe to continue driving with OBDII code B0775:06 active?

- It is generally safe to drive with this code, but it is recommended to address the issue promptly to avoid potential problems with the 4WD system.

7. Can a DIY enthusiast fix OBDII code B0775:06?

- Depending on your skill level and access to tools, a DIY enthusiast may be able to fix this code by following repair guides and using proper diagnostic equipment.

8. How do I reset OBDII code B0775:06 once the issue is resolved?

- After repairing the circuit issue, you can reset the code using an OBDII scanner or by disconnecting the car battery for a few minutes.

9. Will OBDII code B0775:06 affect the performance of my vehicle?

- This code is related to the 4WD High indicator circuit and should not directly impact the overall performance of the vehicle, but it may affect the functionality of the 4WD system.

10. How common is OBDII code B0775:06 in vehicles?

- This code may occur in vehicles equipped with a Four Wheel Drive system, particularly if there are issues with the indicator circuit.