OBD-II code · Powertrain (generic)
P0749 Pressure Control Solenoid A Intermittent
Same as P0748 with intermittent or erratic signal.
Is it safe to drive with P0749?
Usually safe for short trips, but don’t ignore it: the underlying fault can get more expensive over time.
Common causes
- Most likelyIntermittent contact at connector
- Less likelyConnector with intermittent contact under vibration
- Less likelyHarness routed against vibrating component
Symptoms
- Check engine or transmission warning light on
- Harsh, delayed, or missing shifts
- Possible limp mode (locked in one gear)
- Slipping or shuddering during gear changes
Repair at a glance
- Difficulty
- Hard
- DIY friendly
- Best left to a mechanic
- Typical labour
- 2–6 h
- Emissions test
- Usually unaffected
- Parts involved
- Pressure Control Solenoid A
Related codes
- P0779Pressure Control Solenoid B Intermittent
- P0799Pressure Control Solenoid C Intermittent
- P08BEPressure Control Solenoid L Intermittent
- P08C7Pressure Control Solenoid M Intermittent
- P2717Pressure Control Solenoid D Intermittent
- P2726Pressure Control Solenoid E Intermittent
- P2735Pressure Control Solenoid F Intermittent
- P27BCPressure Control Solenoid N Intermittent
- P27C4Pressure Control Solenoid P Intermittent
- P27CCPressure Control Solenoid R Intermittent
- P27D4Pressure Control Solenoid S Intermittent
- P27DCPressure Control Solenoid T Intermittent
- P0746Pressure Control Solenoid A Performance
- P0747Pressure Control Solenoid A Stuck On
- P0748Pressure Control Solenoid A Electrical
- P074AUnable to Engage Gear 2
- P074BUnable to Engage Gear 3
- P074CUnable to Engage Gear 4
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.