Blower Motor Does Not Operate

Step 1: Check Fuse Relay



1. Check "BLOWER" fuse.
2. If a fuse is open, check for a short-circuit in wiring harness before replacing "BLOWER" fuse.




3. If fuse is OK, proceed to inspection.

Step 2: Check Voltage At Blower Motor
1. Turn ignition switch ON.
2. Turn blower switch to OFF.




3. Measure voltage at following pin of blower motor connector C253.

Step 3: Check Voltage At Blower Motor Resistor Assembly
1. Turn ignition switch ON.
2. Turn blower switch OFF and verify that A/C switch is OFF.







3. Measure voltage at following pins of resistor assembly connector C262.

Step 4: Check Voltage At Blower Switch
1. Turn ignition switch ON.
2. Turn blower switch to OFF.




3. Measure voltage at following pins of blower switch connector C263.

Step 5: Check Voltage At Blower Switch
1. Turn blower switch to OFF.




2. Use ohmmeter to check continuity from ground to indicated pin of blower switch connector C263.

Step 6: Check Voltage At Blower Switch
1. Turn ignition switch ON.
2. Turn blower switch to indicated position and A/C switch to OFF.




3. Measure voltage between battery voltage (pin 1 of C253) and following pins of blower switch connector C263.