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Home >> Lexus >> 2017 >> IS 300 F Sport >> Repair and Diagnosis >> External Pages >> Different car >> Section 132 (Automatic Transmission System (Aa81E, For 8AR-FTS) - Diagnostic Codes (1 Of 4)) >> AUTOMATIC TRANSMISSION SYSTEM (for 8AR-FTS) >> DTC P0615-12: Starter Relay Circuit Short to Battery [08/2015 - 10/2016] >> Description

DTC P0615-12: Starter Relay Circuit Short to Battery [08/2015 - 10/2016]: Description

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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 1. Diagnosis Condition 2. Malfunction Status 3. Malfunction Time 4. Other
  1. Battery voltage of 10.5 V or more applied to the ECM
  2. When conditions (a), (b) and (c) are met.
    1. Vehicle speed of 20 km/h (12 mph) or more
    2. Engine speed of more than 1000 rpm
    3. STA signal ON
  3. 20 seconds or more
  4. 1-trip detection logic
  • Park/neutral position switch assembly
  • Starter relay circuit
  • Cranking holding function circuit
  • Harness and connector
  • ECM
  • Certification ECU (Smart key ECU assembly)
Comes on DTC stored SAE Code:
P0617