B0785 Cadillac Code - Two Wheel Drive High Range Indicator Circuit
Quick Answer
The Two Wheel Drive (2WD) High Range (HI) indicator circuit consists of a Light Emitting Diode (LED) feed circuit, an LED, and an 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
- B0785 Cadillac indicates Two Wheel Drive High Range Indicator Circuit.
- 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.
Code B0785 Cadillac Description
The TCCM tests the 2WD HI indicator circuit for unexpected voltage by monitoring the B+ supplied by the BCM on the indicator dimming control circuit by grounding the 2WD HI indicator control circuit for 2 seconds during the Bulb Test at key ON.
What are the Possible Causes of the DTC B0785 Cadillac?
- 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 B0785 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 B0785 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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Frequently Asked Questions about B0785 Cadillac Code
1. What are common symptoms of OBDII code B0785 in a Cadillac?
- Common symptoms include the Two Wheel Drive High Range Indicator not functioning properly, the indicator light staying on constantly, or the indicator light not illuminating at all.
2. What can cause the OBDII code B0785 in a Cadillac?
- The code B0785 in a Cadillac can be caused by issues with the high range indicator circuit, such as a faulty indicator switch, wiring issues, or a malfunctioning indicator control module.
3. How can I diagnose the OBDII code B0785 in my Cadillac?
- Diagnosis typically involves checking the indicator switch, inspecting the wiring for any damage or loose connections, and using a diagnostic scan tool to identify the specific issue with the high range indicator circuit.
4. Are there any repair tips for fixing the OBDII code B0785 in a Cadillac?
- Repair tips may include repairing or replacing faulty wiring, replacing the indicator switch if necessary, or resetting the indicator control module to clear the code and see if the issue resolves.
5. Can I continue driving my Cadillac with the OBDII code B0785?
- While the vehicle may still be operational with this code, it is recommended to address the issue promptly to prevent potential further damage to the indicator system.
6. How do I reset the OBDII code B0785 in a Cadillac?
- You can reset the code by using a diagnostic scan tool to clear the code after addressing and fixing the underlying issue with the high range indicator circuit.
7. Is the OBDII code B0785 a serious problem in a Cadillac?
- While the code itself may not directly affect the drivability of the vehicle, it is important to address it to ensure the proper functioning of the high range indicator system in your Cadillac.
8. Can extreme weather conditions trigger the OBDII code B0785 in a Cadillac?
- Yes, extreme weather conditions like excessive heat or cold can sometimes lead to electrical issues that may trigger the B0785 code related to the Two Wheel Drive High Range Indicator Circuit.
9. How long does it typically take to repair the OBDII code B0785 in a Cadillac?
- The repair time can vary depending on the specific cause of the code, but it may take anywhere from a few minutes to a couple of hours to diagnose and fix the issue with the high range indicator circuit.
10. Will the OBDII code B0785 cause my Cadillac to fail an emissions test?
- The B0785 code is not directly related to emissions, so it should not cause your Cadillac to fail an emissions test. However, it is still recommended to address and resolve the code to ensure the overall health of your vehicle's systems.
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