P1587 Code - CAN Communication Error MT/AT Recognition Error
Quick Answer
The diagnostic trouble code P1587 indicates a CAN communication error related to MT/AT recognition error in the vehicle's system. Common causes include Faulty wiring or loose connections in the CAN network, Malfunctioning sensors related to transmission recognition, Damaged ECM or TCM. 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
- P1587 indicates CAN Communication Error MT/AT Recognition Error.
- Common causes
- Common causes include Faulty wiring or loose connections in the CAN network, Malfunctioning sensors related to transmission recognition, Damaged ECM or TCM.
- 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 P1587 Description
The diagnostic trouble code P1587 indicates a CAN communication error related to MT/AT recognition error in the vehicle's system. The CAN (Controller Area Network) is a communication network in modern vehicles that allows different electronic control units (ECUs) to communicate with each other. The MT/AT recognition error specifically refers to a fault in the communication between the engine control module (ECM) and the transmission control module (TCM) regarding the type of transmission installed in the vehicle.
Common Causes of P1587
- Faulty wiring or loose connections in the CAN network
- Malfunctioning sensors related to transmission recognition
- Damaged ECM or TCM
- Software glitches or programming errors
- Water damage or corrosion in the electrical components
Symptoms of P1587
- Erratic shifting of gears
- Transmission slipping
- Hesitation or jerking during acceleration
- Decreased fuel efficiency
- Difficulty starting the vehicle
How to Fix P1587
- Begin by conducting a thorough inspection of the wiring harness, connectors, and sensors related to the ECM and TCM.
- Check for any visible signs of damage, corrosion, or loose connections, and repair or replace as necessary.
- Use a diagnostic scan tool to retrieve and clear the P1587 code from the vehicle's system memory.
- Perform a relearn procedure to reset the ECM and TCM communication and ensure proper recognition of the transmission type.
- Test drive the vehicle to verify that the symptoms associated with the code have been resolved and that the ECM and TCM are communicating correctly.
Cost to Fix P1587
The typical repair costs for addressing a CAN communication error with MT/AT recognition error (P1587) can vary depending on the specific cause of the issue and the extent of the repairs needed. In general, the cost of parts for this repair could range from $100 to $500, while labor costs could range from $150 to $300. However, it is important to note that diagnosis time and labor rates at auto repair shops can vary, so it is advisable to obtain quotes from local shops to get a more accurate estimate. Additionally, factors such as the vehicle make and model, engine type, and location can also influence the overall repair costs.
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Code P1587 Information for Specific Makes
- P1587 Buick — Cruise Control Clutch Control Circuit Low
- P1587 Cadillac — Cruise Control Clutch Control Circuit Low
- P1587 Chevrolet — Cruise Control Clutch Control Circuit Low
- P1587 Ford — Throttle Control Unit Modulated Command Malfunction
- P1587 GMC — Cruise Control Clutch Control Circuit Low
- P1587 Honda — Motor Power Inverter Module Current Signal Circuit Low Input
- P1587 Hyundai — CAN Communication Error MT/AT Recognition Error
- P1587 Jaguar — Throttle Control Unit Modulated Command Malfunction
- P1587 KIA — CAN Communication Error MT/AT Recognition Error
- P1587 Mercedes-Benz — Engine Control Module Supply Voltage
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