[SOLVED] P1789 Code: Fixing Shorted Conditions In 3-2 Timing/Coast Clutch Solenoid Circuit

The automobile fault code P1789 indicates a problem with the Coast Clutch Solenoid. This can be identified by the Engine Light or Service Engine Soon Warning Light turning on. The cause of this fault code could be a faulty solenoid, an open or shorted harness, or a poor electrical connection in the solenoid circuit.

To fix this issue, it is recommended to visually inspect the wiring harness and connectors for any damage.

Look out for broken, bent, pushed out, or corroded pins in the connectors. The repair time for this issue is estimated to be around 1.0. It is important to address this problem promptly to prevent further damage to the vehicle.

Repair Importance Level10.0 (Out of 10)
Estimated Repair TimeApproximately 1.0 hour
Repair Difficulty Level10.0 (Out of 10)

When the engine light is on or the service engine soon warning light is illuminated, it could be a sign of the p1789 fault code.

  • The symptoms of the automobile fault code P1789 include the Engine Light being ON or the Service Engine Soon Warning Light being illuminated.

The automobile fault code p1789 can be caused by a faulty Coast Clutch Solenoid, an open or shorted Coast Clutch Solenoid harness, or a poor electrical connection in the Coast Clutch Solenoid circuit.

  • The fault code P1789 can be caused by the following: a faulty Coast Clutch Solenoid, an open or shorted harness for the Coast Clutch Solenoid, and a poor electrical connection in the Coast Clutch Solenoid circuit.

To fix the automobile fault code p1789, start by visually inspecting the wiring harness, connectors, and components for any damage or corrosion.

  • To fix the automobile fault code P1789, follow these steps: 1.
  • Check the possible causes mentioned above.
  • 2.
  • Visually inspect the wiring harness and connectors related to the fault code.
  • 3.
  • Look for any damaged components.
  • 4.
  • Check for broken, bent, pushed out, or corroded pins in the connectors.
  • The estimated repair time for this fix is 1.0 hour.

The factors influencing the diagnosis and fixing cost of the automobile fault code p1789 are the estimated repair time of 1.0 hour and the average hourly rate charged by auto repair shops, which ranges between $75 and $150.

When you’re cruising along with your engine running, the Powertrain Control Module (PCM) might receive a signal indicating a problem with the 3-2 Timing or coast clutch solenoid circuit.

This is what the P1789 fault code means. It’s telling you that there’s a short circuit in this particular circuit.

It’s important to address this issue promptly to ensure smooth and efficient operation of your vehicle.

What are the possible causes of the automobile fault code P1789?

If you see the engine light or service engine soon warning light on, it could be due to the fault code P1789. This code is often caused by a faulty coast clutch solenoid, an open or shorted harness, or a poor electrical connection in the coast clutch solenoid circuit. To fix this issue, visually inspect the wiring harness and connectors for any damage. Check for broken, bent, pushed out, or corroded pins in the connectors. Make sure to address any issues found during the inspection.

How can I visually inspect the wiring harness and connectors to fix the P1789 fault code?

If you’re dealing with the P1789 fault code and notice that your engine light is on, it’s time to take action. The most common causes for this code are a faulty Coast Clutch Solenoid, an open or shorted harness, or a poor electrical connection in the solenoid circuit. To fix the issue, start by visually inspecting the wiring harness and connectors. Look for any signs of damage, such as broken or bent pins, corrosion, or components that are out of place. This step is crucial in identifying and resolving the problem.

What should I look for when checking for damaged components and connector’s pins to resolve the P1789 fault code?

When resolving the P1789 fault code, start by checking for damaged components and connector’s pins. This can be done by visually inspecting the related wiring harness and connectors. Look for any broken, bent, pushed out, or corroded pins. By doing so, you can identify any faults in the Coast Clutch Solenoid or its circuit, which may be causing the Engine Light to turn on.

p1789 error fault code explained

If you’re seeing the Engine Light ON or the Service Engine Soon Warning Light, the cause could be a faulty Coast Clutch Solenoid, an open or shorted harness, or a poor electrical connection.

To fix it, visually inspect the wiring harness and connectors, check for damaged components, and look for any broken, bent, pushed out, or corroded pins on the connectors.

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