P1835 – OBD-II DTC

OBD-II DTC P1835 – Transmission Transfer Case Counter Clockwise Shift Relay Coil Short Circuit To Battery

DTC P1835 meaning

DTC P1835 refers to a diagnostic trouble code indicating a short circuit in the transmission transfer case counterclockwise shift relay coil to the battery. This code is part of the On-Board Diagnostics II (OBD-II) system, which monitors various vehicle components to ensure proper functionality. When the vehicle’s computer detects an abnormal voltage or resistance in the shift relay circuit, it triggers this code, signaling a potential issue with the transfer case operation.

DTC P1835 symptoms

Common symptoms associated with DTC P1835 may include:

• Illuminated check engine light
• Difficulty shifting gears
• Transfer case not engaging or disengaging properly
• Unusual noises from the transfer case
• Vehicle may enter limp mode

DTC P1835 causes

Several factors can lead to the occurrence of DTC P1835, including:

• Short circuit in the shift relay coil wiring
• Faulty shift relay
• Corroded or damaged connectors
• Malfunctioning transfer case control module
• Electrical issues such as poor ground connections

DTC P1835 seriousness

The seriousness of DTC P1835 can vary based on the symptoms experienced. While it may not cause immediate safety concerns, it can lead to:

• Inability to shift into the correct gear
• Increased wear on transmission components
• Potential for further electrical issues
• Reduced vehicle performance

It is advisable to address this code promptly to avoid more significant problems down the line.

How to diagnose DTC P1835

To diagnose DTC P1835, follow these steps:

1. Use an OBD-II scanner to confirm the presence of the P1835 code.
2. Inspect the wiring and connectors related to the transfer case shift relay for damage or corrosion.
3. Test the shift relay for proper operation using a multimeter.
4. Check the transfer case control module for any faults or issues.
5. Examine the vehicle’s ground connections to ensure they are secure and free of corrosion.

How to fix DTC P1835 step-by-step instructions

To fix DTC P1835, follow these step-by-step instructions:

1. Disconnect the vehicle’s battery to ensure safety while working on electrical components.
2. Inspect and repair any damaged wiring or connectors related to the shift relay.
3. Replace the shift relay if it is found to be faulty.
4. Clean or replace corroded connectors to ensure a good electrical connection.
5. Reconnect the battery and clear the DTC using an OBD-II scanner.
6. Test drive the vehicle to ensure the issue is resolved and the check engine light does not reappear.

How to erase DTC P1835

To erase DTC P1835, follow these steps:

1. Connect an OBD-II scanner to the vehicle’s diagnostic port.
2. Turn on the vehicle’s ignition without starting the engine.
3. Navigate to the “Erase Codes” or “Clear DTCs” option on the scanner.
4. Confirm the action to clear the trouble codes.
5. Disconnect the scanner and start the vehicle to ensure the check engine light is off.

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