While the engine is being cranked, the positive 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 12.4 mph (20 km/h) for over 20 seconds.


DTC Detection Conditions

Trouble Areas


When conditions (a), (b) and (c) met, positive (+B) battery voltage 10.5 V or more applied to ECM for 20 seconds (1 trip detection logic):

(b) Engine speed more than 1,000 rpm

(c) STA signal ON

• Starter relay circuit

• Ignition switch


: A/T denotes Automatic Transaxle models and M/T denotes Manual Transaxle models. MONITOR STRATEGY

Related DTCs

P0617: Starter signal

Required Sensors/Components (Main)

STARTER relay, PNP switch, Clutch start switch and Ignition switch

Required Sensors/Components (Related)

Vehicle Speed Sensor (VSS), Crankshaft Position (CKP) sensor

Frequency of Operation



20 seconds

MIL Operation


Sequence of Operation


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