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Home >> Toyota >> 2012 >> Highlander Limited, FWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 114 (Hybrid Vehicle Control System (Diagnostic Codes (P0069-273 - P0A63-502)) (Hybrid)) >> Hybrid Control System >> DTC P0A38-257: Generator Temperature Sensor Circuit Low; DTC P0A39-259: Generator Temperature Sensor Circuit High >> Description

DTC P0A38-257: Generator Temperature Sensor Circuit Low; DTC P0A39-259: Generator Temperature Sensor Circuit High: Description

WARNING: This page is about a different variant/trim than selected.

Refer to the description for DTC P0A37-260. Refer to DESCRIPTION .

DTC No. INF Code DTC Detection Condition Trouble Area
P0A38 257 Short to GND in the generator temperature sensor circuit
  • Wire harness or connector
  • Hybrid vehicle control ECU
  • Hybrid vehicle transaxle assembly (Generator temperature sensor)
P0A39 259 Open or short to +B in the generator temperature sensor circuit

HINT: 

After confirming that DTC P0A38-257 or P0A39-259 is output, use the Techstream to check "Motor Temp No2" in the hybrid vehicle control ECU Data List.

Displayed Temperature Malfunction
-40°F (-40°C) Open circuit or short to +B
419°F (215°C) Short circuit or short to GND