1
VERIFY FREEZE FRAME DATA HAS
BEEN RECORDED
z
Has FREEZE FRAME DATA been
recorded?
Yes Go to the next step.
No
Record FREEZE FRAME DATA on the repair
order, then go to the next step.
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
VISUALLY INSPECT HO2S WIRING
HARNESS
z
Turn the ignition switch off.
z
Disconnect the HO2S connector.
z
Visually inspect the HO2S wiring
harness.
{
Check the connector (both
halves) for contamination
{
Make sure the connector pins
are fully seated
z
Is a concern present?
NOTE:
z
Disconnect the HO2S wiring
harness connector.
Yes Repair if necessary. Go to Step 9.
No
Go to the next step.
4
INSPECT WHETHER HO2S SIGNAL
LEVEL IS TOO HIGH
z
Connect the HO2S connector.
z
Turn the ignition switch to the ON
position (Engine running)
z
Access the PCM and monitor the
HO2S signal PID.
z
Is the voltage less than 1.1V?
Yes Go to Step 6.
No
Go to the next step.
PERFORM THOROUGH WIGGLE
TEST ON HO2S WIRING HARNESS
z
Turn the ignition switch off.
z
Turn the ignition switch to the ON
Yes Repair if necessary. Go to Step 9.
2008 Mazda CX-9 Grand Touring
2008 ENGINE PERFORMANCE On-Board Diagnostic (MZI-3.7) - Mazda CX-9
Microsoft
Sunday, November 15, 2009 10:08:35 AM
Page 85
© 2005 Mitchell Repair Information Company, LLC.