What Does P1835 Mean?
The transfer case counter-clockwise shift relay control circuit is shorted to battery voltage. This is a duplicate code description indicating the same fault as P1830, possibly from a different detection strategy.
Common Causes
35%
Chafed or damaged wiring harness exposing wire to battery voltage
30%
Failed transfer case shift relay with internal short to power circuit
20%
Transfer case control module internal failure with shorted output
15%
Damaged or corroded connector terminals causing circuit cross-talk
Diagnostic Steps
1
Step 1: Disconnect the counter-clockwise shift relay and verify no voltage present at control coil circuit
2
Step 2: Trace wiring harness from control module to relay, inspecting for damage or improper routing
3
Step 3: Check for aftermarket accessories or modifications that may have tapped into power circuits
4
Step 4: Test relay for internal shorts by measuring resistance between coil and power terminals
5
Step 5: Verify proper ground connections for both relay and control module
Estimated Repair Cost
$150 - $800
Parts + labor, varies by vehicle and location
The transfer case counter-clockwise shift relay control circuit is shorted to battery voltage. This is a duplicate code description indicating the same fault as P1830, possibly from a different detection strategy.
The most common cause of P1835 (Transmission Transfer Case Counter Clockwise Shift Relay Coil Short Circuit To Battery) is: Chafed or damaged wiring harness exposing wire to battery voltage
Typical repair costs for P1835 range from $150 to $800, depending on the vehicle, location, and whether you do it yourself or go to a shop.
Transfer case shift mechanism may operate unpredictably or become inoperative. Unexpected mode changes while driving can cause loss of control or drivetrain damage.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to P1835 to identify the root cause.
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Quick Info
Category
Powertrain
System
Transfer Case / Four-Wheel Drive System
Difficulty
Type
Manufacturer
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