(see
DTC TABLE [MZI-3.5]
.)
5. Access EVAPCP and ECT PIDs.
6. Verify that the ECT PID is
more than 78 °C {173 °F}
.
z
If the ECT PID reading indicates
less than 78 °C {173 °F}
, perform the ECT inspection.
7. Set the vehicle on the dynamometer or chassis roller.
8. Drive the vehicle
approx. 2,000 rpm for 30 sec.
or more.
z
If there is no vacuum, inspect the following:
Wiring harness and connector (Main relay-purge solenoid valve-PCM terminal 1 BC)
Purge solenoid valve
MAF, APP1, APP2, APP3, TP_REL and LOAD PISs
z
If there is vacuum, inspect the following:
Vacuum hose (Purge solenoid valve-charcoal canister)
A/C CUT-OFF CONTROL SYSTEM INSPECTION
1. Start the engine.
2. Turn the A/C switch and the fan switch on.
3. Verify that the A/C compressor magnetic clutch actuates.
z
If it does not actuate, go to symptom troubleshooting "No.23 A/C does not work sufficiently".
4. Fully open the throttle valve and verify that the A/C compressor magnetic clutch does not actuate for
2-5
s
.
z
If it actuates, inspect as follows:
A/C relay
Open or short to GND circuit in wiring harness and connectors (Ignition switch-A/C relay-
PCM terminal 1N)
A/C related parts
APP1, APP2, APP3 PIDS
COOLING FAN CONTROL SYSTEM INSPECTION
1. Connect the M-MDS to the DLC-2.
2. Start the engine and warm it up to normal operating temperature.
WARNING:
z
When the dynamometer or chassis roller is operating, there is a
possibility that the operator may come into contact with or be
caught up in the rotating parts, leading to serious injuries or
death. When performing work while the dynamometer or
chassis roller is operating, be careful not to come into contact
with or caught up in any of the rotating parts.
2007 Mazda CX-9 Grand Touring
2007 ENGINE PERFORMANCE Symptom Troubleshooting (MZI-3.5) - CX-9
Microsoft
Sunday, November 15, 2009 9:27:38 AM
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© 2005 Mitchell Repair Information Company, LLC.