Mazda CX-7 2007 Workshop Manual page 572

Fuel injection control (+)
PCM terminals
• Fuel injection No.1, No.4: 2BG (+)— body ground
(–)
• Fuel injection No.2, No.3: 2BH (+)— body ground
(–)
Oscilloscope setting
• 20 V/DIV (Y), 400 µs/DIV (X), DC range
Vehicle condition
• Idle after warm up (no load, P/S off, A/C off)
Using the M-MDS
Note
• PIDs for the following parts are not available on this model. Perform the specific inspections for the
following parts:
— CMP sensor (See01-40-45 CAMSHAFT POSITION (CMP) SENSOR INSPECTION[L3 WITH TC].)
— Main relay
1. Connect the M-MDS to the DLC-2.
2. Turn the ignition switch to the ON position.
3. Measure the PID value.
• If PID value is not within the specification,
follow the instructions in the "Inspection item"
column.
Note
• The PID/DATA MONITOR function monitors
the calculated value of the input/output
signals in the PCM. Therefore, an output
device malfunction is not directly indicated
as a malfunction of the monitored value for
the output device. If a monitored value of an
output device is out of specification, inspect the monitored value of the input device related to the output
control.
• For input/output signals except those of the monitoring items, use a voltmeter to measure the PCM
terminal voltage.
• The simulation items that are used in the ENGINE CONTROL SYSTEM OPERATION INSPECTION are
as follows.
— ACCS, ALTF, ARPMDES, FAN_DUTY, EVAPCP, FP, FUELPW, GENVDSD, HTR11, HTR12, IMRC,
INJ_1, INJ_2, INJ_3, INJ_4, SEGRP, test, VT DUTY1, WGC
01-40–16
CONTROL SYSTEM [L3 WITH TC]
0 V
DLC-2
acxuuw00000277
acxuuw00000278