P0748 on Dodge
Pressure Control Solenoid "A" Electrical
P0748 on Dodge vehicles indicates pressure control solenoid "a" electrical. Au7o has documented this code across 1 Dodge model — most commonly on Dakota. P0748 is a generic powertrain code meaning the transmission control module has detected an electrical fault — voltage or resistance out of the expected range — in the circuit for pressure control solenoid "A". This solenoid regulates hydraulic line pressure inside an automatic transmission, adjusting how firmly the clutches and bands apply based on speed, load, and throttle position. When the computer can't control the solenoid electrically, the transmission often defaults to maximum line pressure or limp mode, so you may feel harsh or erratic shifts, slipping, delayed engagement when shifting into Drive, or being locked into a single gear. Because it is an electrical-circuit code, the fault is usually in the solenoid itself or its wiring rather than a purely hydraulic problem, though contaminated fluid can damage the solenoid. Continuing to drive with slipping and overpressure shifts can overheat the transmission and lead to expensive internal damage, so this should be repaired promptly. Typical repair costs on Dodge range from $150 to $2,500, depending on the specific model and root cause.
Common Causes of P0748
- •Failed pressure control solenoid A (open or shorted solenoid windings)
- •Damaged, frayed, or shorted wiring in the solenoid circuit, including the transmission case connector
- •Corroded or loose electrical connectors at the transmission harness
- •Low, dirty, or contaminated transmission fluid degrading or sticking the solenoid
- •Clogged transmission filter or debris in the valve body hydraulic passages
- •Faulty transmission control module or PCM driver circuit (rare)
P0748 on Dodge by Model
Dodge Dakota(1 issue)
- 46RE/42RE Governor Pressure Solenoid and Sensor Failure1996-1999
The electronically-modulated 42RE (behind the V6) and 46RE (behind the V8) automatic transmissions, used 1996-1999, rely on a governor pressure solenoid and a governor pressure sensor mounted on the valve body to control shift timing. Heat and mileage fatigue the sensor and cause the solenoid to stick, producing erratic, harsh, or delayed shifts. A failed sensor commonly forces the transmission into limp mode (locked in a single gear). This is a well-known, relatively inexpensive failure often misdiagnosed as a worn-out transmission - Mopar reportedly priced the parts high early on because so many were failing.
Looking for P0748 on a different make?
View P0748 across all makes →Frequently Asked Questions
What does P0748 mean on Dodge?▼
P0748 stands for "Pressure Control Solenoid "A" Electrical." P0748 is a generic powertrain code meaning the transmission control module has detected an electrical fault — voltage or resistance out of the expected range — in the circuit for pressure control solenoid "A". This solenoid regulates hydraulic line pressure inside an automatic transmission, adjusting how firmly the clutches and bands apply based on speed, load, and throttle position. When the computer can't control the solenoid electrically, the transmission often defaults to maximum line pressure or limp mode, so you may feel harsh or erratic shifts, slipping, delayed engagement when shifting into Drive, or being locked into a single gear. Because it is an electrical-circuit code, the fault is usually in the solenoid itself or its wiring rather than a purely hydraulic problem, though contaminated fluid can damage the solenoid. Continuing to drive with slipping and overpressure shifts can overheat the transmission and lead to expensive internal damage, so this should be repaired promptly. On Dodge specifically, this code is documented across 1 model.
What causes P0748 on Dodge vehicles?▼
Common causes on Dodge: Failed pressure control solenoid A (open or shorted solenoid windings), Damaged, frayed, or shorted wiring in the solenoid circuit, including the transmission case connector, Corroded or loose electrical connectors at the transmission harness, Low, dirty, or contaminated transmission fluid degrading or sticking the solenoid, Clogged transmission filter or debris in the valve body hydraulic passages. Specific causes vary by model and year — see the per-model sections below.
How much does it cost to fix P0748 on a Dodge?▼
Repair costs on Dodge range from $150 to $2,500, depending on the specific model and root cause.
Which Dodge models have P0748 documented?▼
Au7o has documented P0748 on 1 Dodge model: Dakota.