Conditions for Setting the DTC

WARNING: This page is about a different car, the 2019 GMC Savana 3500, 2019 GMC Savana 2500, 2019 Chevrolet Express 3500, and 2019 Chevrolet Express 2500. However, it is still accessible from the selected car via links, so may be relevant.

P0121

Throttle Position Sensor 1 = Stuck in range - For greater than 1 s

P0122

Throttle Position Sensor 1 = Less than 0. 3 V - For greater than 1 s

P0123

Throttle Position Sensor 1 = Greater than 4. 7 V - For greater than 1 s

P0222

Throttle Position Sensor 2 = Less than 0. 3 V - For greater than 1 s

P0223

Throttle Position Sensor 2 = Greater than 4. 6 V - For greater than 1 s

P16A0

Serial Data circuit = Less than 0. 5 V - For greater than 1 s

P16A1

Serial Data circuit = Greater than 4. 1 V - For greater than 1 s

P16A2

Serial Data circuit = Message Counter Incorrect/Too Many Pulses/Too Few Pulses

P2135

Throttle Position Sensor 1, 2 = Not within 7-10% of each other - For greater than 1 s