P0842 Saturn Code - Transmission Fluid Pressure Sensor/Switch 'A' Circuit Low
Quick Answer
The P0842 code for Saturn vehicles indicates a problem with the Transmission Fluid Pressure Sensor/Switch 'A' Circuit. Common causes include Faulty transmission fluid pressure sensor/switch, Wiring or connection issues in the sensor/switch circuit, Low transmission fluid levels. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- P0842 Saturn indicates Transmission Fluid Pressure Sensor/Switch 'A' Circuit Low.
- Common causes
- Common causes include Faulty transmission fluid pressure sensor/switch, Wiring or connection issues in the sensor/switch circuit, Low transmission fluid levels.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
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Code P0842 Saturn Description
The P0842 code for Saturn vehicles indicates a problem with the Transmission Fluid Pressure Sensor/Switch 'A' Circuit. This means that the powertrain control module (PCM) has detected a low voltage signal from the transmission fluid pressure sensor or switch in the transmission control system. The transmission fluid pressure sensor/switch 'A' is responsible for monitoring the pressure of the transmission fluid and sending this information to the PCM.
Common Causes of P0842 Saturn
- Faulty transmission fluid pressure sensor/switch
- Wiring or connection issues in the sensor/switch circuit
- Low transmission fluid levels
- Internal transmission problems
- PCM software or hardware issues
Symptoms of P0842 Saturn
- Rough or delayed gear shifts
- Poor acceleration
- Decreased fuel efficiency
- Transmission slipping
- Illuminated Check Engine Light
How to Fix P0842 Saturn
- Use a scan tool to retrieve the fault code and diagnose the specific cause of the issue.
- Inspect the transmission fluid pressure sensor/switch and its wiring for any damage or corrosion. Replace any faulty components.
- Check the transmission fluid level and condition. Top off or replace the fluid if necessary.
- Clear the fault code from the PCM memory and test drive the vehicle to ensure the issue has been resolved.
- If the problem persists, further diagnostic testing may be needed to identify any internal transmission issues.
Cost to Fix P0842 Saturn
The typical repair costs for addressing a P0842 code can vary depending on the specific cause of the issue. In general, parts for replacing a transmission fluid pressure sensor/switch can range from $50 to $200, while labor costs can range from $100 to $300. Additional costs may be incurred if the transmission fluid needs to be replaced or if further diagnostic testing is required. It is advisable to check with local auto repair shops for more accurate pricing based on your vehicle make and model, as well as labor rates in your area.
Tech Notes for P0842 Saturn
2005-2006 Saturn Relay
2005-2006 Saturn Relay AWD
2005-2007 Saturn Relay EXT
Saturn Factory Service Bulletin OBDII Code P0842
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