Mazda CX-9 Grand Touring 2008, Руководство пользователя

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5*
INSPECT TO SEE WHETHER MALFUNCTION
IS IN WIRING HARNESS (OPEN CIRCIT
BETWEEN REAR BLOWER RELAY AND
GROUND) OR ELSEWHERE
z
Measure the voltage at the following rear blower
relay terminal.
{
Terminal E (GND signal)
z
Is the voltage approx. 0 V?
Yes Go to the next step.
No
Repair or replace for open circuit
between rear blower relay and GND,
then go to Step 13.
6*
INSPECT TO SEE WHETHER MALFUNCTION
IS IN WIRING HARNESS (OPEN OR SHORT
CIRCUIT BETWEEN REAR BLOWER RELAY
AND REAR BLOWER MOTOR) OR
ELSEWHERE
z
Measure the voltage at the following rear blower
relay terminal.
{
Terminal B (blower motor operation signal)
z
Is the voltage approx. 12 V?
Yes
Repair or replace for open or short
circuit between rear blower relay and
rear blower motor, then go to Step
13.
No Replace the rear blower relay, then
go to Step 13.
7*
INSPECT TO SEE WHETHER MALFUNCTION
IS IN REAR BLOWER MOTOR OR ELSEWHERE
z
Measure the voltage at the following rear blower
motor terminal.
{
Terminal A (blower motor operation signal)
z
Is the voltage approx. 12 V?
Yes Go to the next step.
No
Replace the rear blower motor, then
go to Step 13.
8*
INSPECT TO SEE WHETHER MALFUNCTION
IS IN WIRING HARNESS (OPEN OR SHORT
CIRCUIT BETWEEN REAR BLOWER MOTOR
AND REAR POWER MOS FET) OR ELSEWHERE
z
Measure the voltage at the following rear power
MOS FET terminal.
{
Terminal B (blower motor operation signal)
z
Is the voltage approx. 12 V?
Yes Go to the next step.
No
Repair or replace for open or short
circuit between rear blower motor
and rear power MOS FET, then go to
Step 13.
9*
INSPECT TO SEE WHETHER MALFUNCTION
IS IN WIRING HARNESS (OPEN CIRCUIT
BETWEEN REAR POWER MOS FET AND
GROUND) OR ELSEWHERE
z
Is there continuity at the following terminals?
{
Terminal (wiring harness-side connector)
A-GND
Yes Go to the next step.
No
Repair or replace for open circuit
between rear power MOS FET and
GND, then go to Step 13.
INSPECT REAR A/C UNIT
2008 Mazda CX-9 Grand Touring
2008 HVAC Symptom Troubleshooting (HVAC) - Mazda CX-9
Microsoft
Sunday, November 15, 2009 10:14:51 AM Page 20 © 2005 Mitchell Repair Information Company, LLC.