P0774
LowP0774 — Intermittent Shift Solenoid E Circuit Fault
Description
What This Code Means
Code P0774 points to an intermittent fault in the shift solenoid E circuit of the automatic transmission. This solenoid controls hydraulic pressure for specific gear shifts. The intermittent nature of the fault can come from loose wiring, corroded connectors, or a failing solenoid itself.
Symptoms
Symptoms
- Intermittent harsh shifts
- Check Engine light comes on
- Transmission fault warning
Causes and fixes
Diagnosis and Repair
Step 1: Check the Wiring and Connectors
Inspect the wire harness and connectors for loose or corroded contacts.
Step 2: Measure Solenoid Resistance
Measure the resistance of shift solenoid E. The normal value is 4–6 ohms.
Step 3: Replace the Solenoid
If the intermittent fault persists, replace the solenoid (OEM part number: 24001442383).
Step 4: Clear Codes and Verify
Clear the fault codes and take a test drive to confirm the problem is fixed.
Possible secondary damage
Secondary Damage
An intermittently working solenoid can cause unstable hydraulic pressure, which leads to accelerated wear on the friction plates and other transmission components. Ignoring the fault can turn into a costly transmission rebuild.