DTC P0133, P0139, P0153, P0159 [MZI-3.7]
DTC P0133, P0139, P0153, P0159 (MZI-3.7) DETECTION CONDITIONS AND POSSIBLE CAUSES
{
Pushed out pins
{
Corrosion
z
Connect all the PCM connectors and
verify that they seat correctly.
No
Repair if necessary. Then go to the next step.
9
VERIFY TROUBLESHOOTING OF
MISFIRE DTC HAS BEEN
COMPLETED
z
Verify that all disconnected
connectors are reconnected.
z
Turn the ignition switch to the ON
position (Engine off).
z
Clear the DTC from the PCM memory
using the M-MDS.
z
Start the engine and run it at idle.
z
Retrieve DTCs using the M-MDS.
z
Is the PENDING CODE for this DTC
present?
Yes
Replace PCM, then go to the next step. (See
PCM REMOVAL/INSTALLATION [MZI-
3.7]
.)
No
Go to the next step.
10
VERIFY AFTER REPAIR
PROCEDURE
z
Perform "AFTER REPAIR
PROCEDURE". (See
AFTER
REPAIR PROCEDURE [MZI-3.7]
.)
z
Are any DTC present?
Yes
Go to the applicable DTC inspection. (See
DTC
TABLE [MZI-3.7]
.)
No
Troubleshooting completed.
DTC P0133
P0133: Front HO2S (RH) circuit slow response
DTC P0139
P0139: Rear HO2S (RH) circuit slow response
DTC P0153
P0153: Front HO2S (LH) circuit slow response
DTC P0159
P0159: Rear HO2S (LH) circuit slow response
DETECTION
CONDITION
z
The HO2S monitor checks the HO2S frequency and amplitude.
z
The test fails if the frequency and amplitude fall below a calibrated limit during
testing.
z
Contaminated HO2S
z
Exhaust leaks
z
Open circuit in wiring harness between PCM terminal 2Y (wiring harness-side)
and front HO2S (RH) terminal B (wiring harness-side)
z
Open circuit in wiring harness between PCM terminal 2BG (wiring harness-side)
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 87
© 2005 Mitchell Repair Information Company, LLC.
