TEST
ACTION
APPLICABILITY
7
Turn the ignition off.
Disconnect the Front Blower Power Module C1 harness connector.
Measure the resistance between ground and the Ground circuit.
Is the resistance below 5.0 ohms?
All
Yes
→ Go To 8
No
→ Repair the Ground circuit for an open.
Perform BODY VERIFICATION TEST - VER 1.
8
Turn the ignition off.
Disconnect the Front Blower Power Module C1 harness connector.
Disconnect the ATC C1 harness connector.
Turn the ignition on.
Measure the voltage of the Front Blower Motor Control circuit.
Is the voltage above 0.2 volts?
All
Yes
→ Repair the Front Blower Motor Control circuit for a short to
voltage.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Go To 9
9
Turn the ignition off.
Disconnect the Front Blower Power Module C1 harness connector.
Disconnect the ATC C1 harness connector.
Measure the resistance of the Front Blower Motor Control circuit between the Front
Blower Power Module C1 harness connector and the ATC C1 harness connector.
Is the resistance below 5.0 ohms?
All
Yes
→ Go To 10
No
→ Repair the Front Blower Motor Control circuit for an open.
Perform BODY VERIFICATION TEST - VER 1.
10
Turn the ignition off.
Reconnect the Front Blower Power Module C1 harness connector.
Reconnect the ATC C1 harness connector.
Start the engine.
Press the ATC’s PWR switch on.
Set the front blower speed to low.
While back probing, measure the voltage of the Front Blower Motor Control circuit
in the ATC C1 harness connector.
Is the voltage above 7.5 volts?
All
Yes
→ Go To 11
No
→ Replace the Front Blower Power Module in accordance with the
Service Information.
Perform BODY VERIFICATION TEST - VER 1.
641
HEATING & A/C
*FRONT BLOWER MOTOR INOPERATIVE - ATC —
Continued