6
{
Fan control module No.1
terminal 1B (wiring harness-side)
and body ground.
{
Fan control module No.2
terminal B (wiring harness-side)
and body ground.
Single fan control module
{
Fan control module terminal 1B
(wiring harness-side) and body
ground.
z
Are there voltage B+?
No
Go to the next step.
7
INSPECT FAN CONTROL CIRCUIT
FOR SHORT TO GROUND
z
Turn the ignition switch off.
z
Inspect continuity between the
following circuits:
Dual fan control module
{
Fan control module No.1
terminal 1B (wiring harness-side)
and body ground.
{
Fan control module No.2
terminal B (wiring harness-side)
and body ground.
Single fan control module
{
Fan control module terminal 1B
(wiring harness-side) and body
ground.
z
Are there continuity?
Yes
Repair or replace suspected part, then go to
Step 10.
No
Go to the next step.
8
INSPECT PCM CONNECTOR FOR
POOR CONNECTION
z
Turn the ignition switch off.
z
Disconnect PCM connector.
z
Inspect for poor connection (such as
damaged/pulled-out pins, corrosion).
z
Is there any malfunction?
Yes
Repair or replace suspected part, then go to
Step 10.
No
Go to the next step.
INSPECT FAN CONTROL CIRCUIT
2008 Mazda CX-9 Grand Touring
2008 ENGINE PERFORMANCE On-Board Diagnostic (MZI-3.7) - Mazda CX-9
Microsoft
Sunday, November 15, 2009 10:08:38 AM
Page 238
© 2005 Mitchell Repair Information Company, LLC.
