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Home >> Toyota >> 2015 >> Prius C One >> Repair and Diagnosis >> Hybrid/Electric Powertrain >> Testing and Diagnosis >> Hybrid Control System (Diagnostic Codes (P0069-273 - P0A38-257)) >> Hybrid Control System >> DTC P0617-142: Starter Relay Circuit High [12/2014 - ] >> Description

DTC P0617-142: Starter Relay Circuit High [12/2014 - ]: Description

w/ Smart Key System:

The hybrid vehicle control ECU monitors the ST signal received from the certification ECU (smart key ECU assembly). When an error is detected in the ST signal, this DTC is stored.

w/o Smart Key System:

The hybrid vehicle control ECU monitors the ST signal received from the ignition or starter switch assembly. When an error is detected in the ST signal, this DTC is stored.

DTC No. INF Code DTC Detection Condition Trouble Area
P0617 142 w/ Smart Key System:
An ST signal from the hybrid vehicle control ECU is on when the power switch is off.
w/o Smart Key System:
Although the ignition switch is off, the hybrid vehicle control ECU receives a ST signal.
(2 trip detection logic)
  • Hybrid vehicle control ECU
  • Wire harness or connector
  • Ignition or starter switch assembly
  • Certification ECU (smart key ECU assembly)