FLOWCHARTS — Flowchart No. 1 (continued): Steps 6–7

G-14flowchart

TROUBLESHOOTING

1
Turn the fan switch off.
2
Measure the voltage at the (L/W) terminal wire of the resistor connector.
B+: Battery positive voltage

Voltage	Action
B+	Go to Step 7
Other	Replace resistor (Refer to page G-41)

B+

ActionGo to Step 7

Other

ActionReplace resistor (Refer to page G-41)

1
Turn the ignition switch to OFF.
2
Remove the heater control unit and disconnect the fan switch connector. (Refer to page G-43.)
3
Check for continuity between the (B) terminal wire of the fan switch connector and ground.

Continuity	Action
Yes	Replace fan switch (Refer to page G-44 or G-45)
No	Repair wiring harness (Fan switch—GND)

Yes

ActionReplace fan switch (Refer to page G-44 or G-45)

ActionRepair wiring harness (Fan switch—GND)