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Home >> Cadillac >> 2003 >> CTS Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Self-Diagnostics >> Diagnostic Tests >> DTC P0121: Throttle Position Sensor Circuit Insufficient Activity >> Diagnostic Procedures

Diagnostic Procedures

Fig 1: DTC P0121: Throttle Position Sensor Circuit Insufficient Activity (Steps 1-4)
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Fig 2: DTC P0121: Throttle Position Sensor Circuit Insufficient Activity (Steps 5-14)
G00248987Courtesy of GENERAL MOTORS CORP.
Fig 3: DTC P0121: Throttle Position Sensor Circuit Insufficient Activity (Steps 15-23)
G00248988Courtesy of GENERAL MOTORS CORP.
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