AutoCodes – Generic – P1829

P1829 Code - Transmission Transfer Case Counter Clockwise Shift Relay Coil Open Circuit

Quick Answer

The transfer case is equipped with an electromagnetic clutch which is located inside the case. Common causes include Faulty Generic Electronic Module (GEM), Generic Electronic Module (GEM) harness is open or shorted, Generic Electronic Module (GEM) 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: P1829 indicates Transmission Transfer Case Counter Clockwise Shift Relay Coil Open Circuit.
Common causes: Common causes include Faulty Generic Electronic Module (GEM), Generic Electronic Module (GEM) harness is open or shorted, Generic Electronic Module (GEM) 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 33,443

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 Sep 21, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1829 Description

The transfer case is equipped with an electromagnetic clutch which is located inside the case. This clutch is used to spin up the front driveline when shifting from 2WD to 4H mode at speed. When the control switch on the instrument panel is turned, the Generic Electronic Module (GEM) recognizes that a shift has been requested and activates the electromagnetic clutch and the relays which power the transfer case shift motor. When the shift motor reaches the desired position, as determined by the contact plate position inputs to the GEM, power to the shift relays and motors will be removed. When the transfer case front and rear output shafts are synchronized, the spring loaded lockup collar mechanically engages the mainshaft hub to the drive sprocket.Finally, the front axle collar is engaged and the electromagnetic clutch is deactivated. The transfer case clutch relay is an electromechanical relay used to activate the transfer case clutch within the transfer case.

OBDII Code P1829 - Transmission Transfer Case Counter Clockwise Shift Relay Coil Open Circuit - AutoCodes.com — P1829 Code - Transmission Transfer Case Counter Clockwise Shift Relay Coil Open Circuit

What does this mean?

What are the Possible Causes of the DTC P1829?

Faulty Generic Electronic Module (GEM)
Generic Electronic Module (GEM) harness is open or shorted
Generic Electronic Module (GEM) circuit poor electrical connection

How to Fix the DTC P1829?

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 P1829 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 P1829 code?

Need more information on how to fix the P1829 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P1829 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

P1829 Ford — Transmission Transfer Case Counter Clockwise Shift Relay Coil Open Circuit
P1829 Lincoln — Transmission Transfer Case Counter Clockwise Shift Relay Coil Open Circuit
P1829 Mercury — Transmission Transfer Case Counter Clockwise Shift Relay Coil Open Circuit
P1829 Mitsubishi — Shift Fork Position Sensor 2 System Poor Performance

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 P1829 Code

1. What are the common symptoms of OBDII code P1829 related to the Transmission Transfer Case Counter Clockwise Shift Relay Coil Open Circuit?

- Common symptoms include difficulty shifting gears, erratic shifting behavior, and the vehicle getting stuck in a particular gear.

2. What are the possible causes of OBDII code P1829?

- The code may be triggered by a faulty relay coil, damaged wiring, poor electrical connections, or a malfunctioning transfer case shift control module.

3. How can I diagnose the issue causing OBDII code P1829?

- You can use a scan tool to read the code and then inspect the relay coil, wiring, and connections for any visible damage or loose connections.

4. Can OBDII code P1829 be fixed without professional help?

- If you have experience with automotive electrical systems, you may be able to repair the issue by replacing the faulty relay coil or repairing damaged wiring. However, professional help is recommended for accurate diagnosis and repair.

5. Is it safe to continue driving with OBDII code P1829 present?

- It is not recommended to continue driving with this code present, as it can lead to further damage to the transmission and transfer case components.

6. How much does it typically cost to repair OBDII code P1829?

- The cost of repair can vary depending on the underlying cause, but it may involve replacing the relay coil, repairing wiring, or replacing the transfer case shift control module. Costs can range from $100 to $500 or more.

7. Can a weak car battery cause OBDII code P1829 to appear?

- Yes, a weak car battery can sometimes cause electrical issues that trigger this code. Ensure your battery is in good condition before proceeding with any repairs.

8. Will resetting the OBDII code P1829 make it go away permanently?

- Resetting the code may temporarily clear the warning light, but if the underlying issue is not addressed, the code is likely to reappear once the problem resurfaces.

9. How long does it take to repair OBDII code P1829?

- The repair time can vary depending on the exact cause of the issue and the complexity of the repair. It may take a few hours to a full day for a professional technician to diagnose and fix the problem.

10. Can extreme weather conditions affect the occurrence of OBDII code P1829?

- Yes, extreme weather conditions such as excessive heat or cold can sometimes exacerbate electrical issues that lead to the appearance of this code.