OBD code P0942 indicates a problem with the transmission shift solenoid control circuit.
This affects the transmission system.
Symptoms include the engine light being on and delays in shifting gears.
Low transmission fluid level, shift lever position, a clogged transmission filter, or a faulty transmission oil pump can cause this issue.
It is a moderate concern.
To fix it, check the mentioned causes and inspect wiring harnesses and connectors for damage.
| Repair Importance Level | 10.0 (Out of 10) |
| Estimated Repair Time | Approximately 1.0 hour |
| Repair Difficulty Level | 10.0 (Out of 10) |
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Symptoms of the p0942 OBD Code
The vehicle may experience issues related to the transmission pressure sensor circuit low.
- Symptoms: Engine Light ON.
- Delay of shifting.
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Causes of the p0942 OBD Code
P0942 code is typically triggered by issues with the transmission fluid pressure sensor circuit.
- P0942 can be caused by a low transmission fluid level.
- A faulty shift lever position sensor.
- A plugged transmission filter.
- A faulty transmission oil pump.
Fixing Error Code p0942 Step By Step
Repair the open or short circuit in the transmission fluid pressure sensor circuit.
- To fix OBDII code P0942, first, review the possible causes related to this code.
- Visually inspect the transmission fluid pressure sensor circuit for any visible damage or loose connections.
- Check the wiring harness and connectors for any signs of wear or corrosion.
- Test the transmission fluid pressure sensor for proper operation using a multimeter.
- Replace the transmission fluid pressure sensor if it fails the test.
- Clear the fault codes and test drive the vehicle to verify the repair.
- If the code returns, further diagnosis may be needed to identify any underlying issues.
Cost Of Fixing p0942 Fault Code
The repair for fault code P0942 may involve replacing the transmission fluid pressure sensor.
The cost to diagnose and fix OBD code P0942 typically ranges from $75 to $150, with an estimated repair time of 1. 0 hour.
Costs depend on labor rates, shop fees, and the complexity of the repair needed.
Details of the p0942 OBD Code
Code P0942 relates to a problem with the supply voltage of the hydraulic pump relay control circuit.
OBD code P0942 means Hydraulic Pressure Unit Loss of Pressure.
This code is triggered by the Transmission Control Module (TCM) when it detects a loss of hydraulic pressure in the transmission hydraulic system.
The TCM monitors the hydraulic pressure to ensure proper operation of the transmission components.
If a loss of pressure is detected, the TCM will set code P0942 to indicate this issue.
Mechanic’s Tech Notes
Code P0942 relates to a problem with the supply voltage of the hydraulic pump relay control circuit.
OBDII code P0942 relates to a problem with the supply voltage to the transmission control module (TCM).
To diagnose this, use a voltmeter to check the power and ground connections to the TCM.
Additionally, utilize a scan tool to confirm communication between the TCM and other modules over the Controller Area Network (CAN) network.
If the wiring and connectors appear intact, consider reprogramming or reflashing the TCM as a potential fix.
Remember to inspect the wiring harness and connectors for any damage, and pay close attention to the condition of the connector pins for signs of corrosion, bending, or breakage.
FAQ
OBD code P0942 indicates a problem with the transmission fluid pressure sensor circuit. Check for low fluid level, shift lever position, plugged filter, or faulty oil pump.
Common symptoms for OBD code P0942 include Engine Light ON, delayed shifting. Causes may be low transmission fluid, shift lever position, plugged filter, faulty oil pump.
Diagnose and repair OBD code P0942 by checking for low transmission fluid, shift lever position, plugged filter, or faulty oil pump. Inspect wiring and connectors for damage.
Wrap Up
If your transmission is slipping or shifting erratically and you see OBDII code P0942, it may be caused by a faulty transmission fluid pressure sensor, a damaged wiring harness, or a poor electrical connection in the transmission fluid pressure sensor circuit.
To address OBDII code P0942, check the wiring and connectors leading to the transmission fluid pressure sensor for any signs of damage or corrosion.
Test the sensor’s resistance and voltage output to determine if it needs replacement.
