Powertrain, generic (extended)

P2476 Exhaust Gas Temperature Sensor Circuit High (Bank 2 Sensor 4)

Check engine lightOn
EmissionsRelevant
Drive cycleNot required
Limp modeNo

P2476 covers the opposite end of the scale from P2475: the signal of bank 2 probe 4 sits above its usable ceiling. Because the probe forms a voltage divider with a pull-up resistor in the control unit, an interrupted wire, a disconnected plug or a short to a supply voltage all drive the input high. For the bank 1 equivalent P2471 Ford uses more than 4.90 V in its 2015 diesel summary and more than 2.66 V in the 2023 edition, both as continuous checks. P2476 is not listed by any maker in public documents; only engines with two banks and four probes per bank could set it. Expect a lit MIL and a substitute temperature, which can stop regeneration.

Likely causes

Open signal or ground wire, often heat-damaged
Connector loose or not locked after service work
Signal wire shorted to a supply voltage

Symptoms

  • MIL on
  • Probe reads maximum or an implausibly hot value
  • Regeneration blocked

Repair estimate

DifficultyMediumDIY possible
Parts and labour€20–350
Time0.3–1.5 h

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

Parts involved

egt sensor b2s4egt wiring

Related codes

P2475P2473P2474P2477P2471P2469

References: law.cornell.edu, fordservicecontent.com, fordservicecontent.com.