RAM 1500 Truck 4WD V8-5.7L VIN D (2005)
5. CHECK THE (C71) BLOWER MOTOR LOW DRIVER CIRCUIT FOR A SHORT TO THE (C73) BLOWER MOTOR M2 DRIVER
CIRCUIT, THE (C72) BLOWER MOTOR M1 DRIVER CIRCUIT, & THE (C70) BLOWER MOTOR HIGH DRIVER CIRCUIT
Measure the resistance between the (C71) Blower Motor Low Driver circuit and the (C73) Blower Motor M2 Driver circuit, the (C72) Blower
Motor M1 Driver circuit, and the (C70) Blower Motor High Driver circuit in the A/C Heater Control C2 harness connector.
Q: Is the resistance below 10K ohms between the (C71) Blower Motor Low Driver circuit and any of the other circuits?
YES: Repair all circuits with a resistance below 10k ohms for a short to the (C71) Blower Motor Low Driver circuit. Perform BODY
VERIFICATION TEST - VER 1. See: Testing and Inspection/Diagnostic Trouble Code Tests and Associated Procedures/Verification Tests/Body
Verification Test
NO: Go To 6
6. CHECK THE (C73) BLOWER MOTOR M2 DRIVER CIRCUIT FOR A SHORT TO THE (C72) BLOWER MOTOR M1 DRIVER
CIRCUIT & THE (C70) BLOWER MOTOR HIGH DRIVER CIRCUIT
Measure the resistance between the (C73) Blower Motor M2 Driver circuit and the (C72) Blower Motor M1 Driver circuit and the (C70) Blower
Motor High Driver circuit in the A/C Heater Control C2 harness connector.
Q: Is the resistance below 10K ohms between the (C73) Blower Motor M2 Driver circuit and any of the other circuits?
YES: Repair all circuits with a resistance below 10k ohms for a short to the (C73) Blower Motor M2 Driver circuit. Perform BODY
VERIFICATION TEST - VER 1. See: Testing and Inspection/Diagnostic Trouble Code Tests and Associated Procedures/Verification Tests/Body
Verification Test
NO: Go To 7
7. CHECK THE (C72) BLOWER MOTOR M1 DRIVER CIRCUIT FOR A SHORT TO THE (C70) BLOWER MOTOR HIGH DRIVER
CIRCUIT
