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Home >> Toyota >> 2021 >> Highlander LE, 4WD >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Automatic Transmission System (UA80F) - Diagnostic Codes (1 Of 2) >> Automatic Transaxle System >> DTC P0615-12: Starter Relay Circuit Short to Battery [12/2019 - 10/2022] >> Description

DTC P0615-12: Starter Relay Circuit Short to Battery [12/2019 - 10/2022]: Description

While the engine is being cranked, battery voltage is applied to terminal STA of the ECM.

If the ECM detects the starter control (STA) signal while the vehicle is being driven, it determines that there is a malfunction in the STA circuit. The ECM then illuminates the MIL and stores this DTC.

This monitor runs when the vehicle is driven at 20 km/h (12 mph) or more for 20 seconds or more.

DTC No. Detection Item DTC Detection Condition Trouble Area MIL Memory Note
P0615-12 Starter Relay Circuit Short to Battery All of the following conditions are met (1-trip detection logic):
  • The battery voltage is 10.5 V or more.
  • The vehicle speed is 20 km/h (12 mph) or more.
  • The engine speed is more than 1000 rpm.
  • The starter signal is ON for 20 seconds or more.
  • Park/neutral position switch assembly
  • Starter relay circuit
  • Cranking holding function circuit
  • Harness and connector
  • ECM
  • Certification ECU (Smart key ECU assembly)
  • Engine stop and start ECU
Comes on DTC stored SAE Code:
P0617