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Home >> Toyota >> 2016 >> Highlander Hybrid Limited >> Repair and Diagnosis >> Hybrid/Electric Powertrain >> Testing and Diagnosis >> Hybrid Control System - Diagnostic Codes (1 Of 6) & Circuit Tests (Hybrid) >> Hybrid Control System >> DTC P0A38-257: Generator Temperature Sensor Circuit Low; DTC P0A39-259: Generator Temperature Sensor Circuit High [10/2017 - ] >> Description

DTC P0A38-257: Generator Temperature Sensor Circuit Low; DTC P0A39-259: Generator Temperature Sensor Circuit High [10/2017 - ]: Description

For description of DTC P0A37-260.

Refer to DESCRIPTION .

DTC No. Detection Item DTC Detection Condition Trouble Area MIL Warning Indicate
P0A38-257 Generator Temperature Sensor Circuit Low Short to ground in the generator temperature sensor circuit
(1 trip detection logic)
  • Wire harness or connector
  • Hybrid vehicle control ECU assembly
  • Generator temperature sensor (Hybrid vehicle transaxle assembly)
Does not come on Master Warning Light:
Comes on
P0A39-259 Generator Temperature Sensor Circuit High Open or short to +B in the generator temperature sensor circuit
(1 trip detection logic)
  • Wire harness or connector
  • Hybrid vehicle control ECU assembly
  • Generator temperature sensor (Hybrid vehicle transaxle assembly)
Does not come on Master Warning Light:
Comes on
RELATED DATA LIST

DTC No. Data List
P0A38-257 Motor Temp No2
P0A39-259

HINT: 

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

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