Mazda 2007 CX-9, Service Highlights

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CONTROL SYSTEM [MZI-3.5]
01-40–6
PCM FUNCTION [MZI-3.5]
id0140c1105300
Function List
•
The control descriptions are as shown below.
End Of Sie
PCM CONSTRUCTION/OPERATION [MZI-3.5]
id0140c1105400
Structure
•
A 140-pin (two-block) PCM connector has been adopted.
Function Description
Drive-by wire control
The drive-by-wire control calculates the optimum target throttle valve opening angle at all
ranges of engine speeds and controls the throttle valve actuator.
Variable valve timing control Changes the intake valve timing according to engine operation conditions.
Fuel injection control Performs optimum fuel injection according to engine operation conditions.
Fuel pump control
Performs energization of the fuel pump relay only when the engine is running (operates fuel
pump).
ESA control Controls ignition to optimum timing according to engine operation conditions.
Evaporative purge control
An appropriate amount of evaporative gas is fed into the dynamic chamber by the driving of
the purge solenoid valve according to the engine operation conditions.
HO2S heater control
Based on the control of the front and rear HO2S heater, a stabilized oxygen concentration is
detected even at low exhaust gas temperature and feedback control of fuel injection even
during cold engine start is made possible for improved cold temperature emission
performance.
A/C cut-off control
The current application (energize/non-energize) to the A/C relay (magnetic clutch) is
controlled according to the engine operation conditions.
Electrical fan control
Through cooling of the radiator and condenser by operation of the cooling fan according to
vehicle conditions, engine reliability and cooling performance have been improved.
PCV valve heater control
Operates the PCV valve heater and PCV valve heater fitting when the intake air temperature
is low.
CAN Used for communication with CAN related module and DLC-2.
1BQ 1BL
1BI
1BG
1BE
1AI
1AG 1AK
1AM
1AC
1AQ
1AO
1BC 1AE
1BP 1BK
1AY
1AW 1AS 1H 1M 1C 1Q 1Y 1U
1AU
1BA 1BN
1F 1K 1O 1AA 1A 1W 1S
1BJ 1BF 1AH 1AL 1AD 1AP 1AX 1AT 1I 1N 1D 1R 1Z 1V 1BB 1BO
1J 1E
1BR 1BM 1BH 1AJ 1AN 1AR 1BD 1AF 1AZ 1AV 1G 1L 1P 1AB 1B 1X 1T
2BQ 2BL
2BI
2BG
2BE
2AI
2AG 2AK
2AM
2AC
2AQ
2AO
2BC 2AE
2BP
2AY
2AW 2AS 2H 2M 2C 2Q 2Y 2U
2AU
2BA 2BN
2F 2K 2O 2AA 2A 2W 2S
2BR 2BM
2BJ
2BH
2BF
2AJ
2AH 2AL
2AN
2AD
2AR
2AP
2BD 2AF 2AZ
2AX 2AT 2I 2N 2D 2R 2Z 2V
2AV
2BB 2BO
2G 2L 2P 2AB 2B 2X 2T
2BK 2J 2E
PCM
WIRING HARNESS-SIDE CONNECTOR
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3423-1U-06H(01-40).fm 6 ページ ２００６年１１月２２日 水曜日 午後２時１８分