Powertrain, generic (extended)

P2E62 Engine Coolant Bypass Valve E Control Circuit/Open

Check engine lightOn
EmissionsRelevant
Drive cycleNot required
Limp modeNo

Coolant bypass valve E is the fifth electrically driven coolant valve in the SAE lettering; which coolant path it controls (heater, radiator, transmission, block) is up to the carmaker. P2E62 says the engine computer sees an open or otherwise faulty drive circuit. No manufacturer documents valve E publicly. Ford's 2020–2023 gasoline summary shows the usual logic for its valves A to D: a smart driver reports an output fault during continuous monitoring and the code sets after 5 s. Driver chips find a broken line by feeding small test currents and checking where the pin voltage settles, as an AMI Semiconductor patent describes. VW fixed P2681 entries on 2024 Atlas models with new engine software instead of parts, so check for updates. Shorts to ground or supply are P2E63 and P2E64.

Likely causes

Loose, corroded or unplugged connector at the valve
Broken wire in the drive or supply line
Open winding in the valve actuator motor or solenoid
ECM software fault or defective output stage

Symptoms

  • Check engine light or service message
  • Heating, warm-up or cooling behaves differently, depending on what valve E controls
  • Valve stays in its de-energised default position

Repair estimate

DifficultyMediumDIY possible
Parts and labour€30–500
Time0.5–2.5 h

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

Parts involved

engine coolant bypass valve ewiring harnessecm

Related codes

P2E63P2E64P2E66P2681P26BD

References: law.cornell.edu, fordservicecontent.com, image-ppubs.uspto.gov, static.nhtsa.gov.