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position. If blower operates in any position, problem is intermittent.
Check for poor connections. loose components or damaged wiring. Repair
or replace as necessary. After repair, go to step 16). If blower motor
does not operate in any speed position, go to next step.
3) Turn ignition switch to OFF position. Disconnect blower
motor harness connector. Turn ignition switch to ON position. Place
blower motor switch in lowest speed position. Using test light
connected to ground, probe blower motor harness connector terminal "B"
(Purple wire). If test light illuminates, go to next step. If test
light does not illuminate, go to step 5).
4) Check Black wire between blower motor harness connector
terminal "A" and ground for open or high resistance. See
WIRING DIAGRAMS. Repair Black wire as necessary. After repair, go to
step 16). If wire is okay, go to step 10).
5) Turn ignition switch to OFF position. Disconnect blower
motor resistor harness connector. Turn ignition switch to ON position.
Set blower motor switch to lowest speed position. Using test light
connected to ground, probe blower motor resistor harness connector
terminal "B" (Yellow wire). If test light does not illuminate, go to
next step. If test light illuminates, go to step 8).
6) Check Yellow wire between blower motor resistor harness
connector terminal "B" and A/C-heater control panel harness connector
C1 terminal "A" for open or high resistance. Repair Yellow wire as
necessary. After repair, go to step 16). If wire is okay, go to next
step.
7) Turn ignition switch to OFF position. Disconnect A/C-
heater control panel harness connector C2. See WIRING DIAGRAMS. Turn
ignition switch to ON position. Using test light connected to ground,
probe A/C-heater control panel harness connector C2 terminal "C"
(Brown wire). If test light illuminates, go to step 11). If test light
does not illuminate, go to step 12).
8) Check Purple wire between blower motor relay harness
connector terminal C1 and blower motor harness connector terminal "B"
for open or high resistance. Repair Purple wire as necessary. After
repair, go to step 16). If wire is okay, go to next step.
9) Check for poor connections or connector damage at blower
motor relay harness connector. Repair of replace as necessary. After
repair, go to step 16). If connections are okay, go to step 13).
10) Check for poor connections or connector damage at blower
motor harness connector. Repair of replace as necessary. After repair,
go to step 16). If connections are okay, go to step 14).
11) Check for poor connections or connector damage at A/C-
heater control panel harness connector. Repair of replace as
necessary. After repair, go to step 16). If connections are okay, go
to step 15).
12) Repair Brown wire between HVAC fuse (20-amp) located in
instrument panel fuse block and A/C-heater control panel harness
connector C2 terminal "C" as necessary. After repair, go to step 16).
13) Replace blower motor relay. After repair, go to step 16).
14) Replace blower motor. See BLOWER MOTOR under REMOVAL &
INSTALLATION. After repair, go to step 16).
15) Replace A/C-heater control panel. See
A/C-HEATER CONTROL PANEL under REMOVAL & INSTALLATION. After repair,
go to next step.
16) 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 OPERATES IN HIGH SPEED ONLY
2000 Models
1) Perform DIAGNOSTIC SYSTEM TEST. Go to next step.
2) Turn ignition switch to ON position. Set mode selector