P0745 Pressure Control Solenoid A

Pressure control solenoid A sets line or clutch pressure by current; most are 'normally high', so with no current – as in limp mode – maximum pressure applies. 'A' is usually the line pressure valve, on GM clutch-to-clutch transmissions (6T, 8L, 9T) the pressure valve of clutch 1. Ford does not use P0745–P0749 but P0960–P0963. P0745 is the general code for this valve; the sub-codes P0746–P0749 follow. It is documented on Mitsubishi CVTs as a current plausibility check: at most 400 mA while 750 mA or more is commanded for 5 s, or 1.34 A or more for 1 s. A failure usually leaves the valve unpowered, so pressure goes to maximum: harsh shifts and, depending on the transmission, limp mode in a fixed gear.

Likely causes

Symptoms

• Harsh shifts or engagement (maximum pressure)
• Limp mode in a fixed gear
• Transmission warning or check engine light

Repair estimate

Typical range across vehicles; the real cost depends on what the testing finds.

Parts involved

Related codes

References: mitsubishitechinfo.com, saabwisonline.com, law.cornell.edu.