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Home >> Chevrolet >> 2021 >> Blazer RS, FWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 12 (Engine Controls And Fuel - 2.0L (LSY) - Diagnostic Information And Procedures (2 Of 2)) >> Diagnostic Information and Procedures >> DTC P2AB8, P2AB9, P2B81, P2B93, P2C9B, or U0644 >> Conditions for Setting the DTC

Conditions for Setting the DTC

WARNING: This page is about a different variant/trim than selected.

P2AB8 

Turbocharger Wastegate Position Sensor = Less than 0.25 V - For greater than 1 s

P2AB9 

Turbocharger Wastegate Position Sensor = Greater than 4.75 V - For greater than 1 s

P2B81 

Turbocharger Wastegate Position Sensor = Internal Malfunction

P2B93 

Turbocharger Wastegate Position Sensor = Not Learned

P2C9B 

Turbocharger Wastegate Position Sensor = Signal noisy or erratic @ Cold Start-Up - For greater than 5 s

U0644 

Serial Data circuit = Message Counter Incorrect/Too Many Pulses/Too Few Pulses - For greater than 1 s