The automobile fault code U1558 indicates a problem with the passenger seat heating and cooling switch or its related components.
The most common symptom is the illumination of the engine light or service engine soon warning light.
The cause of this fault code could be a faulty switch, an open or shorted harness, a poor electrical connection, or a faulty body control module.
The importance of repairing this issue lies in the fact that it could affect the proper functioning of the passenger seat heating and cooling system.
The repair difficulty is moderate, and the estimated repair time is around 1.0 hour.
To fix this issue, one should visually inspect the wiring harness and connectors, check for damaged components, and look for broken, bent, pushed out, or corroded connector’s pins.
| Repair Importance Level | 10.0 (Out of 10) |
| Estimated Repair Time | Approximately 1.0 hour |
| Repair Difficulty Level | 10.0 (Out of 10) |
Unresponsive Steering? U1558 Could Be The Culprit
If you notice the Engine Light ON (or Service Engine Soon Warning Light), it could be due to the u1558 fault code.
Here are the symptoms to look out for:
- The fault code U1558 is associated with several symptoms, including the engine light turning on or the service engine soon warning light illuminating.
- Other symptoms may include issues with the transmission, such as difficulty shifting gears or the transmission slipping.
- Additionally, the vehicle may experience reduced power or acceleration, stalling, or rough idling.
- It may also have trouble starting or experience a decrease in fuel efficiency.
- These symptoms can indicate a range of potential issues, including problems with the transmission control module, wiring issues, or a malfunctioning sensor.
Decoding U1558: Common Causes Of The Fault Code
The automobile fault code u1558 can be caused by a range of issues, including a faulty passenger seat switch and poor electrical connections.
- The automobile fault code U1558 can be caused by a faulty passenger seat heating and cooling switch.
- It can also be caused by an open or shorted harness in the passenger seat heating and cooling switch.
- Another cause can be a poor electrical connection in the passenger seat heating and cooling switch circuit.
- Lastly, a faulty body control module (BCM) can also cause the U1558 fault code to appear.
Fix U1558: Simple Steps To Solve The Issue
Below are some possible fixes for the automobile fault code u1558, including inspecting wiring harness and connectors for damage or corrosion.
- To fix the automobile fault code u1558, first, check the possible causes listed above.
- Then, visually inspect the related wiring harness and connectors.
- Look for any damaged components and check for broken, bent, pushed out, or corroded connector’s pins.
- This fix will take an estimated repair time of 1.0 hour.
Crunching The Numbers: U1558 Repair Cost & Complexity
The automobile fault code U1558 can be diagnosed and fixed within an estimated repair time of 1.0 hour. The cost of repair is influenced by the hourly rate charged by the auto repair shop, which typically ranges between $75 and $150 per hour.
Therefore, the total cost of diagnosis and fixing the U1558 fault code will depend on the hourly rate charged by the auto repair shop and the estimated repair time required to fix the issue.
Unlocking The Mystery Of U1558 Fault Code
The u1558 fault code is related to the Local Interconnect Network (LIN) Bus. It occurs when the Body Control Module (BCM) loses communication with the Passenger Seat Heating and Cooling Switch on the LIN bus network. The LIN bus consists of a single wire with a transmission rate of 10.417 Kbits.
The master control module sets a no communication code against the non-communicating LIN device when serial data communication is lost between any of the LIN devices on the network. The u1558 code is set when a supervised periodic message to the BCM from the Passenger Seat Heating and Cooling Switch has not been received.
FAQ
If you’re experiencing the u1558 automobile fault code, it could be due to a faulty passenger seat heating and cooling switch, an open or shorted harness, a poor electrical connection in the switch circuit, or a faulty body control module (BCM). To fix the issue, check the possible causes listed above, visually inspect the related wiring harness and connectors, and look for any damaged components or broken, bent, pushed out, or corroded connector pins.
If you’re experiencing an Engine Light ON (or Service Engine Soon Warning Light) due to a faulty Passenger Seat Heating and Cooling Switch, you can visually inspect the related wiring harness and connectors to fix the issue. Check for damaged components and look for broken, bent, pushed out, or corroded connector’s pins. Make sure to also check for an open or shorted harness and poor electrical connection in the Passenger Seat Heating and Cooling Switch circuit. If the issue persists, consider checking the Body Control Module (BCM) for faults.
Replacing the Body Control Module (BCM) may not be necessary to fix the u1558 fault code. The engine light may be on due to a faulty passenger seat heating and cooling switch, an open or shorted switch harness, or poor electrical connection in the switch circuit. It is recommended to visually inspect the related wiring harness and connectors for any damage or corrosion before considering replacing the BCM.
Wrap Up
If your engine light is on, it could be due to a faulty passenger seat heating and cooling switch, an open or shorted harness, poor electrical connection, or a faulty body control module. Visually inspect the wiring harness and connectors for damage and check for broken, bent, pushed out, or corroded connector pins.
