2
VERIFY RELATED REPAIR
INFORMATION AVAILABILITY
z
Verify related Service Bulletins
and/or on-line repair information
availability.
z
is any related Service Bulletins
available?
Yes
Perform repair or diagnosis according to
the available Service Bulletins.
z
If the vehicle is not repaired, go to
the next step.
No
Go to the next step.
3
INSPECT POOR CONNECTION OF
CHT SENSOR CONNECTOR
z
Turn the ignition switch off.
z
Disconnect CHT sensor connector.
z
Inspect for poor connection (such
as damaged/pulled-out pins,
corrosion).
z
Are there any malfunction?
Yes
Repair or replace suspected part, then go to
Step 8.
No
Go to the next step.
4
INSPECT CHT SENSOR SIGNAL
CIRCUIT FOR SHORT TO POWER
SUPPLY
z
Turn the ignition switch to the ON
position (Engine off).
z
Measure the voltage between CHT
sensor terminal B (wiring harness-
side) and body ground.
z
Is the voltage
B+
?
Yes
Repair or replace suspected part, then go to
Step 8.
No
Go to the next step.
5
INSPECT PCM CONNECTOR FOR
POOR CONNECTION
z
Disconnect the PCM connector.
z
Inspect for poor connection (such
as damaged/pulled-out pins,
corrosion).
z
Are there any malfunction?
Yes
Repair or replace suspected part, then go to
Step 8.
No
Go to the next step.
6
INSPECT CHT SENSOR CIRCUIT
FOR OPEN CIRCUIT
z
Inspect the continuity between the
following circuit:
{
CHT sensor terminal A
(wiring harness-side) and
PCM terminal 2AL (wiring
harness-side).
Yes
Go to the next step.
No
Repair or replace suspected part, then go to
Step 8.
2007 Mazda CX-9 Grand Touring
2007 ENGINE PERFORMANCE On-Board Diagnostic (MZI-3.5) - CX-9
Microsoft
Sunday, November 15, 2009 9:26:36 AM
Page 354
© 2005 Mitchell Repair Information Company, LLC.
