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Home >> GMC >> 2018 >> Terrain Denali, FWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 7 (Engine Controls And Fuel - 1.5L (LYX) - Diagnostic Information And Procedures (P0351 - P26C8) And Symptoms) >> Diagnostic Information And Procedures >> DTC P16A7, P16AF, Or P16B3: Engine Controls Ignition Relay >> Conditions for Setting the DTC

Conditions for Setting the DTC

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

P16A7 

The ECM detects that the voltage level difference is greater than 3 V between the 2 ignition voltage circuits for greater than 1 s.

P16AF 

The ECM detects the engine controls ignition relay feedback circuit 2 is less than 5 V.

P16B3 

The ECM detects the engine controls ignition relay feedback circuit 2 is greater than 4 V for greater than 5 s.

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