RAM 2500 Truck 4WD V8-5.7L VIN D (2005)
Measure the resistance of the (C73) Blower Motor M2 Driver circuit between the Blower Motor Resistor Block harness connector and the A/C
Heater Control C2 harness connector.
Q: Is the resistance below 5.0 ohms?
YES: Go To 10
NO: Repair the (C73) Blower Motor M2 Driver circuit for an open. Perform BODY VERIFICATION TEST - VER 1. See: Testing and
Inspection/Diagnostic Trouble Code Tests and Associated Procedures/Verification Tests/Body Verification Test
10. CHECK THE (C72) BLOWER MOTOR M1 DRIVER CIRCUIT FOR AN OPEN
Measure the resistance of the (C72) Blower Motor M1 Driver circuit between the Blower Motor Resistor Block harness connector and the A/C
Heater Control C2 harness connector.
Q: Is the resistance below 5.0 ohms?
YES: Go To 11
NO: Repair the (C72) Blower Motor M1 Driver circuit for an open. Perform BODY VERIFICATION TEST - VER 1. See: Testing and
Inspection/Diagnostic Trouble Code Tests and Associated Procedures/Verification Tests/Body Verification Test
11. CHECK THE (C70) BLOWER MOTOR HIGH DRIVER CIRCUIT FOR AN OPEN
