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Home >> Scion >> 2009 >> tC Automatic >> Repair and Diagnosis >> Engine Performance >> 2AZ-FE Engine Control System >> SFI System >> DTC P0121 Throttle/Pedal Position Sensor/Switch "A" Circuit Range/Performance Problem >> Typical Enabling Conditions
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Typical Enabling Conditions

TYPICAL ENABLING CONDITIONS CHART

Monitor runs whenever the following DTCs are not present P0128 (Thermostat)
P0136, P0137, P0138, P0139 (HO2 sensor)
P0171, P0172 (Fuel system)
P0300, P0301, P0302, P0303, P0304 (Misfire)
P0420 (Catalyst)
P0505 (Idle speed control)
P050A (Cold start strategy)
P2195, P2196 (A/F sensor)
P2237, P2238 (A/F sensor)
P2A00 (A/F sensor)
Either of the following conditions A or B is met. -
A. Ignition Switch ON
B. ETCS power ON
Throttle sensor malfunction Not detected