Powertrain, generic · Transmission

P0770 Shift Solenoid E

Check engine lightOn
EmissionsRelevant
Drive cycleNot required
Limp modePossible

What shift solenoid E does depends on the transmission. On Ford's 6R80 and 6F35/6F55 it is an on/off valve that moves a multiplex valve, so solenoid D feeds either the low/reverse brake or the 4-5-6 clutch; on the 6R140 and 5R110W it is a proportional clutch valve with separate short codes (P0985/P0986). On Saab's Aisin 5-speed E is valve S1. P0770 is the general code for solenoid E; Ford uses it for an open circuit, detected when the smart driver feedback disagrees with the command for 0.5–5 s, and on the 6R80/6F it covers all circuit faults of the solenoid. On Ram's 6.7 L with Aisin AS69RC a 2023 bulletin traces P0770 to a leaking capacitor in the engine module, together with other circuit codes. Limp mode follows; on the 6R80/6F engine braking in first or the 4th–6th gears may be missing.

Likely causes

Open or corroded wire or transmission connector
Solenoid coil faulty
Transmission module or electronic module faulty
Solenoid supply missing

Symptoms

  • Transmission warning or check engine light
  • Limp mode in a fixed gear
  • Harsh shifts

Repair estimate

DifficultyMediumWorkshop job
Parts and labour€100–900
Time1–4 h

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

Parts involved

shift solenoidmultiplex valvetransmission valve bodytransmission control module

Related codes

P0771P0772P0773P0985P0986P0765

References: newtonnet.co.uk, fordservicecontent.com, static.nhtsa.gov.