If you see the automobile fault code P0690, it means that your engine light is on or you have a service engine soon warning light.
This code is usually caused by a weak battery with low voltage while cranking, a faulty Engine Control Module (ECM) power relay, an open or shorted ECM power relay harness, a poor electrical connection in the ECM power relay circuit, a blown ECM fuse, or a faulty ECM. To fix this issue, you should visually inspect the wiring harness and connectors, check for damaged components, and look for broken, bent, pushed out, or corroded connector pins. The repair time for this problem is estimated to be around 1.0.
Make sure to check the possible causes mentioned above and take the necessary steps to resolve the issue.
| Repair Importance Level | 10.0 (Out of 10) |
| Estimated Repair Time | Approximately 1.0 hour |
| Repair Difficulty Level | 10.0 (Out of 10) |
Decode The Symptoms: Unveiling The Mystery Of Code P0690
When the engine light is on or the service engine soon warning light is illuminated, it could be a sign of the p0690 fault code.
- The symptoms of the automobile fault code P0690 include the Engine Light being ON or the Service Engine Soon Warning Light being illuminated.
Unveiling The Culprits: What Causes Fault Code P0690?
The automobile fault code p0690 can be caused by a weak battery, faulty ECM power relay, open or shorted ECM power relay harness, poor electrical connection in the ECM power relay circuit, blown ECM fuse, or a faulty ECM.
- The fault code P0690 can be caused by a weak battery with low voltage while cranking.
- It can also be caused by a faulty Engine Control Module (ECM) power relay.
- Another possible cause is an open or shorted ECM power relay harness.
- Additionally, a poor electrical connection in the ECM power relay circuit can trigger this fault code.
- A blown ECM fuse is another potential cause.
- Lastly, a faulty ECM itself can be the reason behind the P0690 fault code.
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Fixing Code P0690: Simple Steps To Get Your Car Running Smoothly!
To fix the p0690 fault code, start by visually inspecting the wiring harness, connectors, and components for any damage or corrosion.
- To fix the automobile fault code p0690, start by checking the possible causes mentioned above.
- Then, visually inspect the wiring harness and connectors related to the issue.
- Look for any damaged components and check for broken, bent, pushed out, or corroded connector pins.
- This fix is estimated to take approximately 1.0 hour.
Cracking The Code: P0690 – Cost And Complexity Unveiled!
The factors influencing the diagnosis and fixing cost of the automobile fault code p0690 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.
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P0690: Fuel Pump Control Module (Fpcm) Circuit Low – Explained!
The P0690 fault code refers to the Electronic Control Module (ECM) Power Relay Sense Circuit being high. This means that the ECM is detecting a high voltage in the power relay sense circuit. The powertrain relay is a normally open relay that is held in the open position by spring tension.
Battery positive voltage is supplied directly to the relay coil and the armature contact at all times. The ECM supplies the ground path to the relay coil control circuit via an internal integrated circuit called an Output Driver Module (ODM). The ODM operates as a low side driver for the powertrain relay and also incorporates a fault detection circuit that is continuously monitored by the ECM.
When the ECM commands the powertrain relay ON, ignition 1 voltage is supplied to the ECM and several additional circuits. The P0690 fault code indicates that there is a high voltage detected in the power relay sense circuit, which may require further diagnosis and repair.
FAQ
If you’re seeing the fault code P0690 and your engine light is on, there are a few possible causes to consider. It could be due to a weak battery with low voltage while cranking, a faulty Engine Control Module (ECM) power relay, an open or shorted ECM power relay harness, a poor electrical connection in the ECM power relay circuit, a blown ECM fuse, or a faulty ECM. To fix this issue, start by checking the possible causes mentioned above. Take a visual inspection of the related wiring harness and connectors, looking for any damage or broken, bent, pushed out, or corroded pins in the connectors.
If you’re dealing with the fault code p0690 and your engine light is on, there are a few things you can do to fix it. First, check for a weak battery or low voltage while cranking. Next, inspect the engine control module (ECM) power relay and its harness for any open circuits or poor electrical connections. Don’t forget to also check for a blown ECM fuse or a faulty ECM. To do this, visually inspect the wiring harness and connectors, looking for any damaged components or broken, bent, pushed out, or corroded pins.
If you’re dealing with the fault code p0690 and your engine light is on, there are a few things you should check. Start by inspecting the wiring harness and connectors related to the issue. Look for any damaged components and pay close attention to the connector’s pins. Check if they are broken, bent, pushed out, or corroded. By visually inspecting these areas, you can identify any potential issues and take the necessary steps to resolve the problem.
Wrap Up
If you’re seeing the Engine Light ON or the Service Engine Soon Warning Light, it could be due to a weak battery or low voltage while cranking, a faulty Engine Control Module (ECM) power relay, an open or shorted ECM power relay harness, poor electrical connection in the ECM power relay circuit, a blown ECM fuse, or a faulty ECM.
To fix this, visually inspect the wiring harness and connectors, check for damaged components, and look for broken, bent, pushed out, or corroded connector pins.
