Diagnostic Aids

Check all connections at the transmission. An open in ignition feed circuit can cause multiple codes to set.

Fig 1: Code 84 Schematic (5.7L) 3-2 Control Solenoid - A/T

Fig 2: Code 84 Flow Chart (5.7L) 3-2 Control Solenoid - A/T

Fig 3: Code 84 Flow Chart