Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This code means that the car's computer is having trouble understanding which gear you've selected because a sensor isn't working right.
The P1860 code is triggered when the transmission control module (TCM) detects a malfunction with the gear selector lever's hall sensor, which is responsible for determining the position of the gear selector lever.
The P1860 code indicates a problem with the hall sensor located in the gear selector lever assembly. This sensor provides feedback to the vehicle's computer about the current position of the gear selector. A malfunction can lead to incorrect or no information being sent to the TCM, affecting gear selection and transmission operation.
• Check Engine Light is on
• Transmission may not shift properly
• Gear indicator may not display correctly
• Faulty gear selector lever hall sensor
• Damaged wiring or connectors
• Faulty transmission control module (TCM)
Hall Sensor: A type of sensor that detects the position of a component using magnetic fields.
Transmission Control Module (TCM): An electronic device that controls the operation of a vehicle's transmission.
• Use an OBD-II scanner to confirm the code.
• Inspect the wiring and connectors related to the gear selector lever hall sensor.
• Test the hall sensor for proper operation.
• Replace the faulty gear selector lever hall sensor.
• Repair or replace damaged wiring or connectors.
• Replace the transmission control module if necessary.
• OBD-II scanner
• Multimeter
• Basic hand tools
$200 - $500
Moderate
• Chevrolet Silverado
• GMC Sierra
• Cadillac Escalade
• Regularly inspect wiring and connectors for damage.
• Ensure proper maintenance of the transmission system.
• Avoid harsh driving conditions that may stress the transmission components.
Sensor Issue
• Have the vehicle inspected by a professional mechanic.
• Avoid driving the vehicle if the transmission is not shifting properly.
• Regularly maintain the vehicle to prevent similar issues.
Check with the vehicle manufacturer for specific warranty coverage related to transmission components.
The P1860 code has been reported in vehicles with automatic transmissions, particularly in models with electronic gear selectors.
Moderate – It is advisable to address this issue soon to avoid potential transmission damage.
Driving with a malfunctioning transmission can be unsafe. Address this issue promptly to ensure vehicle safety.
• Vehicle should be stationary with the engine running.
• Gear selector should be moved through all positions to test sensor response.
The gear selector lever hall sensor is located within the gear selector assembly, typically near the center console.
Q: Can I drive with a P1860 code?
A: It's not recommended to drive with this code as it can lead to transmission issues.
Q: How do I fix a P1860 code?
A: Inspect and replace the faulty gear selector lever hall sensor and repair any damaged wiring.
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