Pressure Control Solenoid "E" Control Circuit High
The PCM detected an abnormally high voltage signal in the Solenoid E control circuit, which manages transmission fluid pressure. This causes the transmission to enter limp mode and may result in harsh shifting or slipping as the system limits itself to protect against damage.
What You Might Notice
- Check Engine Light activated
- Transmission slips when shifting
- Transmission shifts hard or bangs into gear
- Increased fuel consumption
- Transmission overheats
Most Common Causes
- 1
Solenoid E short to power
The pressure control solenoid E has an internal short or the wiring to the solenoid is shorted to battery voltage, causing excessive current draw and a high voltage signal at the PCM.
- 2
Wiring harness damage
The control circuit wiring is damaged, pinched, or corroded, creating a short to power or poor ground that results in high voltage detection by the PCM.
- 3
PCM connector issue
Poor connection, corrosion, or damaged pins at the transmission control module connector can cause signal interpretation errors and high voltage readings.
- 4
Solenoid E mechanical failure
The solenoid has internally failed and is stuck in a position that causes excessive current draw or creates a high voltage condition in the control circuit.
How to Diagnose It
- 1
Check Solenoid E short to power — The pressure control solenoid E has an internal short or the wiring to the solenoid is shorted to battery voltage, causing excessive current draw and a high voltage signal at the PCM.
- 2
Check Wiring harness damage — The control circuit wiring is damaged, pinched, or corroded, creating a short to power or poor ground that results in high voltage detection by the PCM.
- 3
Check PCM connector issue — Poor connection, corrosion, or damaged pins at the transmission control module connector can cause signal interpretation errors and high voltage readings.
- 4
Check Solenoid E mechanical failure — The solenoid has internally failed and is stuck in a position that causes excessive current draw or creates a high voltage condition in the control circuit.
How to Fix It
- 1
Inspect and repair wiring harness
Visually inspect the Solenoid E control circuit wiring for damage, corrosion, or shorts to power. Repair or replace damaged sections and ensure all connections are clean and tight.
- 2
Test and replace Solenoid E
Use a multimeter to test the solenoid resistance and check for shorts to power. If the solenoid is faulty, remove the transmission pan and replace the pressure control solenoid E.
- 3
Clean PCM connectors
Disconnect the transmission control module connector and inspect pins for corrosion or damage. Clean contacts with electrical cleaner and dielectric grease, then reconnect firmly.
- 4
Verify ground circuits
Check all ground connections in the solenoid E circuit for corrosion or loose connections. Test continuity from the solenoid ground to the battery negative terminal and repair as needed.
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