Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This code means there's a problem with the car's computer that controls how much air goes into the engine. It's like when the remote control for your toy car isn't working right.
The P1687 code indicates that the Electronic Throttle Control (ETC) system has detected an issue with the throttle position sensor, which monitors the position of the throttle valve.
The P1687 code is triggered when the Electronic Throttle Control (ETC) system detects a malfunction in the throttle position sensor. This sensor is responsible for sending data to the engine control module (ECM) about the position of the throttle valve. If the ECM receives signals that are out of the expected range or inconsistent, it sets this code.
• Check Engine Light is on
• Reduced engine performance
• Unstable idling
• Faulty throttle position sensor
• Wiring issues in the throttle position sensor circuit
• Failed Electronic Throttle Control module
Throttle Position Sensor: A device that monitors the position of the throttle valve in the engine.
Electronic Throttle Control: A system that electronically controls the throttle valve, replacing the traditional mechanical linkage.
• Use an OBD-II scanner to confirm the code
• Inspect the wiring and connections to the throttle position sensor
• Test the throttle position sensor for proper operation
• Replace the throttle position sensor
• Repair or replace damaged wiring
• Replace the Electronic Throttle Control module if necessary
• OBD-II scanner
• Multimeter
• Screwdriver set
$150 - $500
Moderate
• Dodge Ram
• Jeep Grand Cherokee
• Chrysler 300
• Regularly inspect and clean throttle body
• Ensure proper electrical connections
• Perform routine maintenance checks
Sensor Issue
• Avoid driving the vehicle until repaired
• Consult with a professional mechanic
• Do not attempt repairs if unfamiliar with vehicle electronics
Check if the vehicle is under warranty for powertrain components, which may cover throttle system repairs.
The P1687 code is commonly associated with vehicles that use electronic throttle control systems, which became prevalent in the early 2000s.
Moderate – While the vehicle may still be drivable, it can lead to reduced performance and should be addressed soon.
Driving with a malfunctioning throttle system can be dangerous. Ensure repairs are made promptly to maintain vehicle safety.
• Engine at operating temperature
• Vehicle in park with the engine running
The throttle position sensor is typically located on the throttle body, which is usually mounted on the intake manifold.
Q: Can I drive with a P1687 code?
A: It's not recommended to drive with this code, as it can affect engine performance and safety.
Q: How do I reset the P1687 code?
A: Fix the underlying issue first, then use an OBD-II scanner to clear the code.
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