P0747 Fault Code in Honda: Causes, Symptoms, and Fixes

Diagnostic Trouble Code (DTC) P0747 indicates that the Pressure Control Solenoid “A” in the automatic transmission is stuck in the ON position. This solenoid helps regulate hydraulic pressure in the transmission for gear shifting.

Common Causes:

1. Faulty pressure control solenoid “A”
2. Dirty or contaminated transmission fluid
3. Low transmission fluid level
4. Wiring issues (shorts, damaged wires/connectors)
5. Failed transmission control module (TCM)
6. Internal transmission damage

Symptoms:

1. Harsh or erratic shifting
2. Transmission slipping
3. Delayed gear engagement
4. Limp mode activation
5. Check Engine Light (CEL) ON

Vehicles Commonly Affected:

This code is generic (applies to OBD-II-equipped vehicles), but it’s commonly seen in:
1. Honda/Acura
2. Nissan
3. Ford
4. GM
5. Hyundai/Kia
6. Toyota/Lexus
(Exact meaning and fix may vary depending on the manufacturer.)

Recommended Fixes:

1. Check transmission fluid – level and condition.
2. Inspect solenoid wiring and connectors.
3. Test/replace Pressure Control Solenoid A.
4. Scan with advanced diagnostic tools to check TCM function.
5. Flush transmission fluid if dirty or burnt.
6. Check for internal transmission issues if the above steps don’t resolve it.