DIAGNOSTIC PROCEDURE
DTC P0053, P0054, P0059, P0060 (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 FOR POWER SUPPLY IN
WIRING HARNESS
z
Disconnect the suspect HO2S
connector.
z
Perform the KOEO self-test.
z
Measure the voltage between the
suspect HO2S connector terminal
A and C, on the wiring harness
side.
z
Is the voltage more than 10 V?
Yes
Turn the ignition switch off. Go to the next
step.
No
Repair or replace suspected part, then go to
step 9.
4
INSPECT HO2S HEATER FOR
SHORT TO GROUND
z
Disconnect the PCM.
z
Measure the resistance between
HO2S connector terminal A, the
wiring harness side, and body
ground.
z
Is the resistance more than 10
kilohms?
Yes
Go to the next step.
No
Repair or replace suspected part, Go to
Step 9
5
INSPECT HO2S HEATER FOR
SHORT IN WIRING HARNESS
z
Measure the resistance between
the following terminals:
{
HO2S terminal A (wiring
Yes
Go to the next step.
2007 Mazda CX-9 Grand Touring
2007 ENGINE PERFORMANCE On-Board Diagnostic (MZI-3.5) - CX-9
Microsoft
Sunday, November 15, 2009 9:26:29 AM
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