Silverado 3500 2WD V8-6.6L DSL Turbo VIN 2 (2004)
The numbers below refer to the step numbers on the diagnostic table.
7.
This step tests for battery voltage through the ECM to the FRP regulator.
8.
This step tests for an open control circuit between the ECM and the FRP regulator.
9.
This excessive current code can be set by voltage being applied between the ECM and the FRP regulator on the FRP control circuit.
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