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Home >> Chevrolet >> 2006 >> Impala SS >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - 5.3L - DTC P0449 To DTC P1516 >> DTC P0685, P0689, or P0690 >> Typical Scan Tool Data

Typical Scan Tool Data

EC Ignition Relay Feedback Signal

Circuit Normal Range Short to Ground Open Short to Voltage
Operating Conditions:  Ignition ON, with the engine OFF.
B+ Supply Voltage - Coil - 0.0 V 0.0 V -
B+ Supply Voltage - Armature - 0.0 V 0.0 V -
EC Ignition Relay Control - 0.0 V 0.0 V -
EC Ignition Relay Feedback 11.9-12.9 V 0.0 V 0.0 V More than 2 V1
1 DTC P0690 sets if the ECM detects voltage when the ignition is OFF.