Up to VIN S5219999

Circuit Testing:

Step 1 Check fuses
1. Check the HEATER fuse.
2. If the fuse is burned, check for a short-circuit in the wiring harness before replacing it.
3. If the fuse is OK, go to step 2.

Circuit Testing:

Step 2 Measure voltage at blower motor
1. Turn the ignition switch ON.
2. Turn the blower switch to HI.
3. Measure the voltage at the following terminal wire of the blower motor connector.

Circuit Testing:

Step 3 Measure voltage at resistor assembly
1. Turn the ignition switch ON.
2. Turn the blower switch OFF and verify that the A/C switch is OFF.
3. Measure the voltage at the following terminal wires of the resistor assembly.

Circuit Testing:

Step 4 Measure voltage at blower switch
1. Turn the ignition switch ON.
2. Turn the blower switch to HI.
3. Measure the voltage at the following terminal wire of the blower switch connector.

Circuit Testing:

Step 5 Measure voltage at blower switch
1. Turn the ignition switch ON.
2. Turn the blower switch and A/C switch OFF.
3. Measure the voltage at the following terminals wires of the blower switch connector.