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Home >> Chevrolet >> 2006 >> Impala SS >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - 5.3L - Troubleshooting & Diagnosis >> Displacement on Demand (DoD) System Diagnosis >> Typical Scan Tool Data

Typical Scan Tool Data

Always perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure.

Cylinder Deactivation Data

Display Parameters Normal Range Short to Ground Open/High Resistance Short to Voltage
Operating Conditions:  Engine running, vehicle traveling at 40 mph under a light load condition and steady throttle input.
Cylinder Deactivation System Command V4 or V8 mode V8 mode V8 mode V8 mode
Cylinder Deactivation Performance OK Fault Fault Fault
Cylinder Deactivation Cycles Increment by a count of one during V8 to V4 mode Zero counts or counter stops incrementing Zero counts or counter stops incrementing Zero counts or counter stops incrementing
Distance with Cylinder Deactivated Increment by a count of one for each mile/km in V4 mode Zero counts or counter stops incrementing Zero counts or counter stops incrementing Zero counts or counter stops incrementing
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