Are you experiencing the dreaded Engine Light ON or Service Engine Soon Warning Light? Along with that, is your Cooling Fan not working?
Well, the fault code P1642 might be the culprit.
This code is typically caused by a faulty Cooling Fan Relay, an open or shorted Cooling Fan Relay harness, or a poor electrical component in the Cooling Fan Relay circuit. To fix this issue, start by visually inspecting the wiring harness and connectors.
Look out for any damaged components and check for broken, bent, pushed out, or corroded connector pins. The repair time for this problem is estimated to be around 1.0. So, don’t delay and get your Cooling Fan back in action!
| Repair Importance Level | 10.0 (Out of 10) |
| Estimated Repair Time | Approximately 1.0 hour |
| Repair Difficulty Level | 10.0 (Out of 10) |
Unveiling The Mystery: Symptoms Of Fault Code P1642 Revealed!
If you’re experiencing an illuminated engine light and a malfunctioning cooling fan, you may be dealing with the p1642 fault code.
- The symptoms of the automobile fault code P1642 include the Engine Light being ON (or Service Engine Soon Warning Light) and the Cooling Fan not working.
Unraveling The Mystery: What Causes Fault Code P1642?
The automobile fault code p1642 can be caused by a faulty cooling fan relay, an open or shorted cooling fan relay harness, or a poor electrical component in the cooling fan relay circuit.
- The fault code P1642 can be caused by: a faulty cooling fan relay, an open or shorted cooling fan relay harness, and a poor electrical component in the cooling fan relay circuit.
Fixing Code P1642: Simple Steps To Resolve The Issue
To fix the automobile fault code p1642, start by checking the possible causes and visually inspecting the wiring harness and connectors for any damage or corrosion.
- To fix the automobile fault code P1642, you need to 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.
- 5.
- Repairing this fault code is estimated to take approximately 1.0 hour.
Cracking The Code: P1642 – Cost And Complexity Unveiled!
The factors influencing the cost of diagnosing and fixing the automobile fault code P1642 are the estimated repair time of 1.0 hour and the hourly rate charged by auto repair shops, which typically ranges between $75 and $150.
P1642 Fault Code: Unusual Voltage Detected In Fuel Pump Circuit
The P1642 fault code relates to the control circuit of the Fan Control Relay 2 and 3 in an automobile.
The Powertrain Control Module (PCM) supplies ignition voltage to the cooling fan relay coil and controls the relay by grounding the control circuit through an internal switch called a driver. The driver’s main function is to provide the ground for the component being controlled.
The PCM monitors the fault line of each driver, and if it detects a voltage other than what is expected, it will trigger the P1642 fault code. The purpose of the relay is to manage the high current flow to the cooling fan motors.
By using the relay, the PCM driver only needs to handle the relatively low current required by the relay. This setup helps to protect the PCM from handling excessive current and ensures efficient operation of the cooling fan system.
If the control circuit’s voltage deviates from the expected levels, the fault detection circuit will detect it, leading to the activation of the P1642 fault code.
FAQ
When you see the engine light on and notice that your cooling fan is not working, it could be due to a fault in the cooling fan relay. This can happen if the relay itself is faulty, if there is an issue with the cooling fan relay harness being open or shorted, or if there is a problem with the electrical components in the cooling fan relay circuit. To fix this, you should visually inspect the wiring harness and connectors, checking for any damage or corrosion. Additionally, look out for any broken, bent, pushed out, or corroded pins in the connectors.
To visually inspect the wiring harness and connectors for potential issues related to the P1642 fault code, start by checking for symptoms like the Engine Light being ON or the Service Engine Soon Warning Light. If the cooling fan is not working, it could be caused by a faulty Cooling Fan Relay or an open or shorted Cooling Fan Relay harness. To fix this, visually inspect the wiring harness and connectors for any damaged components. Look for broken, bent, pushed out, or corroded connector pins. This will help identify and resolve any issues.
When troubleshooting the P1642 fault code, start by checking for specific signs. If the engine light is on or the service engine soon warning light is illuminated, and the cooling fan is not working, it’s time to investigate. The most likely cause is a faulty cooling fan relay or an open or shorted cooling fan relay harness. To fix the issue, visually inspect the related wiring harness and connectors. Pay close attention to damaged components and examine the connector’s pins for any signs of being broken, bent, pushed out, or corroded.
Wrap Up
If your engine light is on and your cooling fan isn’t working, the culprit could be a faulty cooling fan relay or a problem with the relay harness. To fix it, visually inspect the wiring harness and connectors for any damage or corrosion. Look out for broken or bent pins too.
