Powertrain, generic (extended)

P2036 Exhaust Gas Temperature Sensor Circuit High (Bank 2 Sensor 2)

Check engine lightOn
EmissionsRelevant
Drive cycleNot required
Limp modePossible

P2036 is set when the bank 2, sensor 2 temperature signal climbs above the top of its valid window. On the usual pull-up input that is what an unplugged connector, a broken lead or an element gone open after heat cycling produces, while a short to supply voltage gives the same picture. No manufacturer documents P2036 publicly; Deutz files the short to battery of its second SCR inlet sensor as P2034-12, and GM's 2018 diesel tables carry all their sensors on bank 1. For the bank 1 code P2033 GM's 2018 diesel tables use a resistance equivalent above 922 ohms, confirmed by 10 failed samples, Type B. Because a dead sensor looks like an extremely hot exhaust here, the control unit may also trigger protective power reduction until the circuit is repaired.

Likely causes

Sensing element open after repeated heat cycles
Connector unplugged, loose or with pushed-back terminal
Sensor lead broken near the hot exhaust
Signal wire shorted to supply voltage

Symptoms

  • Engine warning lamp on
  • Bank 2 temperature shows an implausibly high value
  • Possible protective power reduction

Repair estimate

DifficultyMediumDIY possible
Parts and labour€60–350
Time0.3–1.5 h

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

Parts involved

exhaust gas temperature sensor

Related codes

P2034P2035P2033P0549

References: law.cornell.edu, gsi.ext.gm.com, serdia.deutz.com.