RAM 1500 Truck 4WD V8-5.7L VIN D (2005)
Turn the ignition off.
Disconnect the A/C Heater Control C2 harness connector.
Disconnect the Blower Motor harness connector.
Measure the resistance of the (C70) Blower Motor High Driver circuit between the A/C Heater Control C2 harness connector and the Blower
Motor harness connector.
Q: Is the resistance below 5.0 ohms?
YES: Go To 8
NO: Repair the (C70) Blower Motor High Driver circuit for an open. Perform BODY VERIFICATION TEST - VER 1. See: Computers and
Control Systems/Testing and Inspection/Diagnostic Trouble Code Tests and Associated Procedures/Verification Tests/Body Verification Test
8. CHECK THE (Z134) GROUND CIRCUIT FOR AN OPEN
Measure the resistance of the (Z134) Ground circuit between ground and the A/C Heater Control C2 harness connector.
Q: Is the resistance below 5.0 ohms?
YES: Replace the A/C Heater Control.
NO: Repair the (Z134) Ground circuit for an open. Perform BODY VERIFICATION TEST - VER 1. See: Computers and Control
Systems/Testing and Inspection/Diagnostic Trouble Code Tests and Associated Procedures/Verification Tests/Body Verification Test
9. CHECK THE (C7) BLOWER MOTOR FEED CIRCUIT FOR AN OPEN
