C1136 – OBD-II DTC

OBD-II DTC C1136 – Gear Select position short to ground

DTC C1136 meaning

DTC C1136 refers to a diagnostic trouble code indicating a “Gear Select Position Short to Ground” issue. This code is generated when the vehicle’s onboard diagnostic system detects a fault in the gear selection circuit, specifically when the signal from the gear position sensor is shorted to ground. This can affect the transmission’s ability to determine the current gear selection, leading to potential operational issues.

DTC C1136 symptoms

Common symptoms associated with DTC C1136 may include:

• Transmission not shifting properly
• Inability to engage certain gears
• Check Engine Light illuminated
• Erratic or unexpected vehicle behavior
• Transmission slipping or harsh shifting

DTC C1136 causes

Several factors can lead to the occurrence of DTC C1136, including:

• Faulty gear position sensor
• Wiring issues, such as frayed or damaged wires
• Corroded connectors in the gear selection circuit
• Short circuit in the wiring harness
• Faulty transmission control module (TCM)

DTC C1136 seriousness

DTC C1136 is considered a serious issue as it can lead to improper transmission operation. If left unaddressed, it may result in:

• Increased wear and tear on the transmission
• Potential for complete transmission failure
• Safety risks due to unexpected vehicle behavior

How to diagnose DTC C1136

To diagnose DTC C1136, follow these steps:

1. Use an OBD-II scanner to confirm the presence of the code.
2. Inspect the gear position sensor and its wiring for visible damage.
3. Check for any loose or corroded connectors in the circuit.
4. Test the gear position sensor with a multimeter to ensure it is functioning correctly.
5. Examine the wiring harness for shorts to ground.
6. Clear the code and perform a road test to see if the code reappears.

How to fix DTC C1136 step-by-step instructions

To fix DTC C1136, follow these steps:

1. Identify and repair any damaged wiring or connectors in the gear selection circuit.
2. Replace the gear position sensor if it is found to be faulty.
3. Ensure all connections are secure and free of corrosion.
4. Check the transmission control module for faults and replace if necessary.
5. Clear the DTC using an OBD-II scanner.
6. Test drive the vehicle to confirm that the issue is resolved and the code does not return.

How to erase DTC C1136

To erase DTC C1136, follow these steps:

1. Connect an OBD-II scanner to the vehicle’s diagnostic port.
2. Turn the ignition key to the “On” position without starting the engine.
3. Access the diagnostic trouble codes menu on the scanner.
4. Select the option to clear or erase codes.
5. Confirm the action and wait for the scanner to complete the process.
6. Disconnect the scanner and start the vehicle to ensure the code does not reappear.

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