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Home >> Lexus >> 1993 >> SC 400 >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/Codes >> Diagnostic Code Charts >> Codes 41 & 47 - Throttle Position Sensor (TPS) Signal & Sub-Throttle Position Sensor Signal

Codes 41 & 47 - Throttle Position Sensor (TPS) Signal & Sub-Throttle Position Sensor Signal

HINT: 

If diagnostic trouble code 41 is displayed, check throttle position sensor circuit. If diagnostic trouble code 47 is displayed, check sub-throttle position sensor circuit.

If diagnostic trouble codes "22" (engine coolant temperature sensor circuit), "24" (intake air temperature sensor circuit) and "41" (throttle position sensor circuit) are output simultaneously, E2 (sensor ground) may be open.

Fig 1: Codes 41 & 47 - Diagnostic Flowchart (1 Of 2)
G50B00072Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Fig 2: Codes 41 & 47 - Diagnostic Flowchart (2 Of 2)
G93E79834Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002