[SOLVED] Dodge P1389 Code: Resolve Auto Shutdown Relay Voltage Issue

The OBD code P1389 for Dodge indicates an issue with the Auto Shutdown (ASD) relay control circuit.

This affects the powertrain control module (PCM).

Symptoms include the engine light being illuminated.

The code is often caused by a faulty ASD relay, open or shorted ASD relay harness, poor electrical connection in the circuit, or a faulty PCM.

It is a moderate issue.

To fix, inspect and repair any damaged components, wiring harness, or connectors related to the ASD relay circuit.

Repair Importance Level	10.0 (Out of 10)
Estimated Repair Time	Approximately 1.0 hour
Repair Difficulty Level	10.0 (Out of 10)

Symptoms of the Dodge p1389 OBD Code

The Dodge P1389 fault code typically triggers when there is an issue with the No ASD Relay Output Voltage.

Symptoms: Engine Light ON.
Engine may stall while driving.
Vehicle may have difficulty starting.
Engine may run rough or misfire.

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Causes of the Dodge p1389 OBD Code

Possible triggers for Dodge fault code P1389 include issues with the ASD relay circuit.

P1389 can be caused by a faulty ASD Relay.
An open or shorted ASD Relay harness.
A poor electrical connection in the ASD Relay circuit.
A faulty Powertrain Control Module (PCM).

Fixing Dodge Error Code p1389 Step By Step

Address the issue by inspecting the ASD relay circuit for potential faults or damage.

To fix the Dodge OBDII code P1389, start by reviewing the possible causes mentioned above.
Visually examine the wiring harness and connectors related to the camshaft position sensor.
Check for any damaged components and inspect the connector pins for signs of being broken, bent, pushed out, or corroded.
Test the camshaft position sensor for proper operation and replace it if necessary.
Clear the fault codes from the vehicle’s computer using a scan tool.
Finally, perform a road test to ensure the issue has been resolved.

Cost Of Fixing Dodge p1389 Fault Code

Diagnosing and repairing fault code P1389 on a Dodge may involve testing and replacing components.

The cost to diagnose and fix the Dodge OBD code P1389 typically ranges from $75 to $150 per hour for labor rates.

With an estimated repair time of 1. 0 hour, the total cost could be around $75 to $150, depending on shop rates and the complexity of the issue.

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Details of the Dodge p1389 OBD Code

Dodge fault code P1389 relates to the No Auto Shutdown Relay Output Voltage.

Dodge OBD code P1389 means No Auto Shutdown (ASD) Relay Output Voltage at PCM.

This code is triggered when the Powertrain Control Module (PCM) does not detect voltage from the Auto Shutdown (ASD) relay.

The ASD relay is responsible for supplying power to the ignition coils, injectors, and fuel pump.

When the PCM does not receive the expected voltage signal from the ASD relay, it sets code P1389. This code indicates a potential issue with the ASD relay, its wiring, or related components in the circuit.

Mechanic’s Tech Notes

For Dodge code P1389, refer to detailed diagnostic information for accurate troubleshooting and repair guidance.

To diagnose and fix OBDII code P1389 on a Dodge, start by checking the Transmission Control Module (TCM) power and ground using a multimeter.

Verify TCM communication over the Controller Area Network (CAN) using a scan tool.

If communication issues are found, reprogramming or reflashing the TCM may be necessary.

Additionally, visually inspect the wiring harness and connectors for any damage, and ensure connector pins are not broken, bent, pushed out, or corroded.

This thorough inspection can help identify and resolve the root cause of the P1389 fault code.

FAQ

1. What are the common symptoms associated with OBD code P1389 in a Dodge vehicle?

Common symptoms of OBD code P1389 in a Dodge vehicle include Engine Light ON, caused by issues like a faulty ASD Relay or poor electrical connections. Fix: Inspect and repair wiring/connectors.

2. What is the typical cause of OBD code P1389 in Dodge vehicles?

OBD code P1389 in Dodge vehicles is typically caused by a faulty ASD Relay, open/shorted harness, poor electrical connection, or a faulty PCM. Inspect and repair as needed.

3. How can I diagnose and repair OBD code P1389 in my Dodge vehicle?

Diagnose and repair OBD code P1389 in a Dodge: Symptoms Engine Light ON. Causes Faulty ASD Relay, harness issues. Fix Inspect wiring, connectors for damage or corrosion.

Wrap Up

If your Dodge is displaying OBD code P1389 and experiencing stalling, rough idling, or difficulty starting, it may be caused by a faulty ASD relay control circuit, a defective crankshaft position sensor, or issues with the camshaft position sensor.

To address Dodge OBD code P1389, check the wiring harness for any signs of damage, test the ASD relay for proper operation, inspect the connectors for corrosion or loose connections, and consider replacing the crankshaft and camshaft position sensors if necessary.