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Home >> Scion >> 2013 >> FR-S Standard Trans >> Repair and Diagnosis (Single Page) >> Engine Performance >> Testing & Diagnosis >> Engine Control System (Diagnostic Codes (P0512 - P1603)) >> SFI System >> DTC P0512: Starter Request Circuit; DTC P0616: Starter Relay Circuit Low; DTC P0617: Starter Relay Circuit High; DTC P081A: Starter Disable Circuit Low [05/2013 - ] >> Monitor Description

Monitor 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 after the engine is started, it determines that there is a malfunction in the STA circuit. The ECM then illuminates the MIL and stores the DTC.

DTC No. DTC Detection Condition Trouble Area
P0512 Starter signal remains input for 30 seconds or more after engine started.
(1 trip detection logic)
  • Starter system
  • ST relay circuit
  • ECM
P0616 No starter signal is input when engine started.
(1 trip detection logic)
  • Starter system
  • ST relay circuit
  • ECM
P0617 Starter signal remains input after engine started.
(1 trip detection logic)
  • Starter system
  • ST relay circuit
  • ECM
P081A Short in ST CUT relay circuit is detected.
(1 trip detection logic)
  • Starter system
  • ST CUT relay circuit
  • ECM
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