RAM 1500 Truck 4WD V8-5.7L VIN D (2005)
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(C7) Blower motor feed circuit open
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(A970) Fused B(+) circuit open
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IPM fuse #4 open
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Blower motor
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Ignition switch
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A/C heater control
Diagnostic Test
1. CHECK THE FUSE
Turn the ignition off.
Remove and inspect IPM Fuse #4.
Q: Is the fuse open?
YES: Replace IPM Fuse #4 and Go To 2.
NO: Reinstall IPM Fuse #4 and Go To 5.
2. CHECK BLOWER MOTOR OPERATION
Turn the ignition on.
Turn the blower on and operate it in all speeds and modes.
Q: Does the blower motor operate properly without blowing the fuse?
YES: Check the (C7) Blower Motor Feed circuit and the (A970) Fused B(+) circuit for an intermittent short to ground. Repair as necessary.
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 3
3. CHECK THE (C7) BLOWER MOTOR FEED CIRCUIT FOR A SHORT TO GROUND
