[SOLVED] Jeep P0697 Code: Quick Fix For 5 Volt Reference Circuit

The OBD code P0697 for Jeep indicates a fault with the ECM/PCM Power Relay Control Circuit High.

This affects the engine control module’s ability to regulate power to various engine components.

Symptoms include the Engine Light being illuminated.

The issue is commonly caused by a faulty ECM or wiring harness issues.

It is a moderate concern.

To fix, inspect and repair any damaged wiring or connectors related to the ECM.

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

I know how frustrating it is to see that warning light pop up again and again. You don’t need to spend money at the mechanic just to clear it. With this pocket-friendly automatic car scanner, you can do it yourself in seconds and and avoid the time and inconvenience of driving to a mechanic. Just plug it in, connect to your Android or iOS phone, and instantly see live data. Understand the fault code, clear it right away, and decide if it’s something urgent or if you’re good to drive. It even monitors your car and sends notifications to your phone, so you’re always in control. Simple, fast, and stress-free—today’s offer price!

Symptoms of the Jeep p0697 OBD Code

The vehicle may experience issues related to the sensor power supply circuit malfunction (P0697).

Symptoms: Engine Light ON.
Possible rough idle.
Engine stalling at low speeds.
Loss of power during acceleration.
Difficulty starting the vehicle.

Do you know you can clear most fault codes—but some could mean serious danger? Don’t take chances with your safety or your family’s safety. This budget-friendly car scanner makes it easy to clear fault codes in seconds while showing you exactly what’s wrong. Plug it in, connect to your Android or iOS phone, and instantly check live data. You’ll know if it’s a minor issue you can clear or something serious that needs attention—so you can drive safely and stress-free. (Today’s Deal)

Causes of the Jeep p0697 OBD Code

Possible reasons for Jeep fault code P0697 include issues with the sensor circuit or wiring.

P0697 can be caused by a faulty Engine Control Module (ECM).
An open or shorted ECM harness.
A poor electrical connection in the ECM circuit.
A shorted sensor on the 5volt circuit.

Fixing Jeep Error Code p0697 Step By Step

Replace the engine coolant temperature sensor to address Jeep fault code P0697.

To fix Jeep OBDII code P0697, first, review the possible causes related to the transmission fluid pressure sensor switch B circuit low.
Visually examine the wiring harness and connectors associated with the transmission fluid pressure sensor switch B.
Check for any damaged components and inspect the connector pins for signs of being broken, bent, pushed out, or corroded.
Repair or replace any damaged wiring or connectors as necessary.
Clear the fault code from the vehicle’s computer using a scan tool.
Test drive the vehicle to verify that the P0697 code does not return.

Cost Of Fixing Jeep p0697 Fault Code

The repair for Jeep fault code P0697 may involve replacing the sensor or related wiring.

The cost to diagnose and fix a Jeep OBD code P0697 typically ranges from $75 to $150, based on a repair time estimate of 1. 0 hour.

Factors like shop rates and complexity of the issue can influence the final cost.

Details of the Jeep p0697 OBD Code

Fault code P0697 in a Jeep indicates a sensor reference voltage ‘C’ circuit low.

OBD code P0697 for Jeep vehicles indicates a sensor reference voltage C circuit low.

This code is triggered by the Engine Control Module (ECM) when it detects that the voltage signal from the sensor reference circuit C is below the specified range.

The sensor reference voltage C circuit is typically associated with various sensors in the vehicle, such as the throttle position sensor, manifold absolute pressure sensor, or others depending on the specific vehicle model and engine configuration.

When this circuit voltage drops below the expected range, it can lead to drivability issues and trigger the P0697 fault code.

Mechanic’s Tech Notes

P0697 indicates a fault with the sensor power supply voltage for the engine coolant temperature sensor.

To diagnose and fix OBDII code P0697 on a Jeep, start by checking the transmission control module (TCM) power and ground using a multimeter.

Ensure proper voltage levels are present.

Use a scan tool to confirm TCM communication over the Controller Area Network (CAN) network.

If no communication is detected, reprogramming or reflashing the TCM may be necessary.

Visually inspect the wiring harness and connectors for any damage, and check connector pins for signs of corrosion, bending, or breakage.

Address any issues found during the inspection to resolve the P0697 fault code.

FAQ

1. What does OBD code P0697 mean in a Jeep vehicle?

OBD code P0697 in a Jeep means a fault with the Engine Control Module (ECM) circuit. Check ECM, wiring harness, connectors for issues.

2. What are the common causes of OBD code P0697 in a Jeep?

OBD code P0697 in a Jeep is commonly caused by a faulty ECM, open/shorted ECM harness, poor electrical connection, or shorted sensor on 5V circuit.

3. How can I diagnose and fix OBD code P0697 in my Jeep vehicle?

Diagnose and fix OBD code P0697 in your Jeep by checking ECM, harness, and connectors for faults. Look for damaged components or corroded pins.

Wrap Up

If your Jeep is displaying OBD code p0697 and experiencing issues with the engine coolant temperature sensor circuit low input, it could be caused by a faulty engine coolant temperature sensor, damaged wiring, or poor electrical connections.

To address Jeep OBD code p0697, start by inspecting the engine coolant temperature sensor and its wiring harness for any signs of damage or corrosion.

Test the sensor’s resistance and ensure proper connection at the sensor and ECM connectors.

Replace the sensor if necessary and repair any damaged wiring to resolve the issue.