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 communicating with the transmission because a light that shows the transmission's status isn't working properly.
The Transmission Control Module (TCM) is responsible for controlling the transmission's operation. An open circuit in the LED output means that there is a break in the electrical path that should illuminate a status LED, indicating a communication issue or fault.
P1705 indicates that the TCM has detected an open circuit in the LED output line. This could mean that the LED itself is faulty, the wiring is damaged, or there is a problem with the TCM's ability to send signals to the LED.
• Transmission warning light not illuminating
• Transmission may not shift properly
• Check Engine Light may be on
• Faulty LED indicator
• Damaged wiring or connectors
• Faulty Transmission Control Module (TCM)
TCM: Transmission Control Module
LED: Light Emitting Diode
OBD-II: On-Board Diagnostics II
• Check the transmission warning light for operation.
• Inspect wiring and connectors for damage or corrosion.
• Test the TCM for proper functionality.
• Replace the faulty LED indicator.
• Repair or replace damaged wiring or connectors.
• Replace the Transmission Control Module if necessary.
• Multimeter
• OBD-II scanner
• Screwdrivers
$100 - $600
Moderate
• Nissan Altima
• Honda Accord
• Ford Focus
• Regular inspection of transmission wiring
• Ensure proper maintenance of the TCM
• Avoid driving in extreme conditions that can damage electronics
Transmission Control Issue
• Have the vehicle inspected by a professional if the transmission warning light is not functioning.
• Avoid driving the vehicle if the transmission is not shifting properly.
Check with the vehicle manufacturer for warranty coverage on transmission components.
This code has been associated with vehicles experiencing intermittent transmission issues due to faulty wiring or TCM problems.
Moderate – It is important to address this issue to ensure proper transmission function and avoid further damage.
Driving with a faulty transmission can lead to unsafe driving conditions. Address issues promptly to ensure vehicle safety.
• Vehicle in park or neutral
• Ignition on, engine off
The Transmission Control Module is typically located near the transmission or under the dashboard.
Q: Can I drive with code P1705?
A: It's not recommended to drive with this code active, as it may indicate transmission issues that could worsen.
Q: How can I reset the code?
A: You can reset the code using an OBD-II scanner, but it's important to fix the underlying issue first.
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