Filter
Top Products
switch in VENT position. Set blower motor switch in lowest speed
position. Using test light connected to ground, probe blower motor
resistor harness connector terminal "C" (Dark Blue wire). If test
light illuminates, go to next step. If test light does not illuminate,
go to step 4).
3) Using test light connected to ground, probe blower motor
relay harness connector terminal B2 (Dark Blue wire). If test light
illuminates, go to step 6). If test light does not illuminate, go to
step 8).
4) Check for poor connection or connector damage at blower
motor resistor harness connector. Repair or replace as necessary.
After repair, go to step 9). If connection is okay, go to next step.
5) Replace blower motor resistor. See BLOWER MOTOR RESISTOR
under REMOVAL & INSTALLATION. After repair, go to step 9).
6) Check for poor connection or connector damage at blower
motor relay harness connector. Repair or replace as necessary. After
repair, go to step 9). If connection is okay, go to next step.
7) Replace blower motor relay. After repair, go to step 9).
8) Repair open or poor connection in Dark Blue wire between
blower relay harness connector terminal B2 and blower motor resistor
harness connector terminal "C". After repair, go to next step.
9) Operate blower system to verify repair. If blower motor
operates normally, repair is complete. If blower motor is still
inoperative, return to step 3).
BLOWER SPEED INOPERATIVE IN LOW, MEDIUM-LOW OR MEDIUM-HIGH
SPEED
2000 Models
1) Perform DIAGNOSTIC SYSTEM TEST. Go to next step.
2) Turn ignition switch to OFF position. Disconnect blower
motor resistor harness connector. Turn ignition switch to ON position.
Set blower motor switch in OFF position. Using test light connected to
ground, probe A/C-heater control panel harness connector C1 terminal
for circuit corresponding to inoperative blower speed. See
WIRING DIAGRAMS. If test light illuminates on suspect circuit. go to
next step. If test light does not illuminate, go to step 5).
3) Check for poor connection or connector damage at blower
motor resistor harness connector. Repair or replace as necessary.
After repair, go to step 9). If connections are okay, go to next step.
4) Replace blower motor resistor. See BLOWER MOTOR RESISTOR
under REMOVAL & INSTALLATION. After repair, go to step 9).
5) Using test light connected to ground, individually probe
A/C-heater control panel harness connector C1 terminal which did not
cause test light to illuminate in step 2). If test light illuminates,
go to next step. If test light does not illuminate, go to step 7).
6) Repair open or poor connection in Yellow, Tan or Light
Blue wire(s) between A/C-heater control panel harness connector C1 and
blower motor resistor harness connector. See WIRING DIAGRAMS. After
repair, go to step 9).
7) Check for poor connections or connector damage at A/C-
heater control panel harness connector C1. Repair or replace as
necessary. After repair, go to step 9). If connections are okay, go to
next step.
8) Replace blower motor switch. See BLOWER MOTOR SWITCH under
REMOVAL & INSTALLATION. After repair, go to next step.
9) Operate blower system to verify repair. If blower motor
operates normally, repair is complete. If blower motor is still
inoperative, return to step 3).
BLOWER MOTOR MALFUNCTIONS
2001 Models