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Home >> Lexus >> 2012 >> IS 250 Base, AWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (Diagnostic Codes (P0190-P062F)) >> SFI System >> DTC P0617: Starter Relay Circuit High >> Description

DTC P0617: Starter Relay Circuit High: 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 sets the DTC.

This monitor runs when the vehicle is driven at 20 km/h (12.43 mph) for over 20 seconds.

DTC No. DTC Detection Condition Trouble Area
P0617 When conditions (a), (b) and (c) are met, positive (+B) battery voltage 10.5 V or more applied to ECM for 20 seconds (1 trip detection logic):
(a) Vehicle speed 20 km/h (12.43 mph) or more
(b) Engine speed 1000 rpm or more
(c) STA signal ON
  • Park/Neutral Position (PNP) switch (A/T)
  • Cranking holding function circuit
  • ECM
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