DIAGNOSTIC PROCEDURE
DTC P0685 (MZI-3.5) DIAGNOSTIC PROCEDURE
STEP
INSPECTION
ACTION
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
INSPECT MAIN RELAY NO.1
CONTROL CIRCUIT FOR SHORT
TO GROUND
z
Turn the ignition switch off.
z
Inspect for continuity between
main relay No.1 terminal A
(wiring harness-side) and body
ground.
z
Is there continuity?
Yes
Repair or replace suspected part, then go
to Step 5.
No
Go to the next step.
4
INSPECT FOR CORRECT PCM
OPERATION
z
Disconnect all the PCM
connectors.
z
Visually inspect for:
{
Pushed out pins
{
Corrosion
z
Connect all the PCM connectors
and verify that they seat correctly.
z
Retrieve DTCs using the M-MDS.
z
Is the PENDING CODE for this
DTC present?
Yes
Go to the next step.
No
The system is correctly. Go to the next
step.
5
VERIFY TROUBLESHOOTING OF
DTC P0685 HAS BEEN
COMPLETED
Yes
Replace the PCM, then go to the next step.
(see
PCM
REMOVAL/INSTALLATION [MZI-
3.5]
.)
2007 Mazda CX-9 Grand Touring
2007 ENGINE PERFORMANCE On-Board Diagnostic (MZI-3.5) - CX-9
Microsoft
Sunday, November 15, 2009 9:26:35 AM
Page 326
© 2005 Mitchell Repair Information Company, LLC.