PID/DATA MONITOR INSPECTION[LA4AX-EL (CD4E)]


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1.  Connect the M-MDS to the DLC-2.

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2.  After the vehicle is identified, select the following items from the initial screen of the M-MDS.

•  When using the IDS (notebook PC)
1.  Select the “Toolbox” tab.
2.  Select “DataLogger”.
3.  Select “Modules”.
4.  Select “PCM”.
•  When using the PDS (pocket PC)
1.  Select “Module Tests”.
2.  Select “PCM”.
3.  Select “DataLogger”.

3.  Select the PID from the PID table.

4.  Verify the PID data according to the directions on the screen.

Note
•  Perform part inspection for the output device after PCM inspection.
•  The PID/DATA MONITOR function monitors the calculated value of the input/output signals in the PCM. Therefore, if a monitored value of an output device is out of specification, it is necessary to inspect the monitored value of the input device related to the output device control. Since an output device malfunction is not directly indicated as a malfunction of the monitored value for the output device, it is necessary to inspect the output device individually using methods such as the simulation function.

PID/DATA MONITOR AND RECORD function table

Monitor item

Definition

Unit/Condition

PCM terminal

CCS
3-2 timing/coast clutch solenoid
On/Off
20
kPa
20
CCSV
3-2 timing/coast clutch solenoid control signal voltage
V
20
EPC
Electronic presser control solenoid
kPa
81
EPCV
Electronic presser control solenoid control signal voltage
V
81
GEAR
Selected gear (Calculated from shift solenoids A and B)
1/2/3/4
GEAR_MAX
No.1 gear candidate
GEAR_RAT
Gear ratio
OSS
Output shaft speed
RPM
84
OSS_SRC
Output shaft speed
RPM
84
SSA/SS1
Shift solenoid A
On/Off
6
SSA/SS1_F
Shift solenoid A status
Yes Fault/No Fault
SSB/SS2
Shift solenoid B
On/Off
11
SSB/SS2_F
Shift solenoid B status
Yes Fault/No Fault
TC_SLIPACT
Actual torque converter slip value
RPM
TC_SLIPDSD
Expected torque converter slip value
RPM
TCC
Torque converter clutch control solenoid
%
54
Engaged/Modulated/OFF
54
TCC_F
Torque converter clutch control solenoid status
Yes Fault/No Fault
TCC_RAT
Transaxle slip ratio
TCIL
O/D OFF indicator light
On/Off
TCS
O/D OFF switch
Not Depressed/Depressed
29
TFT
Transaxle fluid temperature
°C
37
V
37
TFT_F
Transaxle fluid temperature status
Yes Fault/No Fault
37
TR
Transaxle range
D/R/OD/
Man 2/Man 1/
P/N
64
TR_F
Transaxle range status
Yes Fault/No Fault
64
TR_V
Transaxle range signal voltage
V
64
TRAN_RAT
Transaxle gear ratio
TSS
Turbine shaft speed
RPM
59
TSS/ISS
Input shaft speed
RPM
59
TSS_SRC
Turbine shaft speed
RPM
59
TSSFM
TSS sensor failure mode
Yes Fault/No Fault
59


Simulation Function Procedure

1.  Connect the M-MDS to the DLC-2.

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2.  After the vehicle is identified, select the following items from the initial screen of the M-MDS.

•  When using the IDS (notebook PC)
1.  Select the “Toolbox” tab.
2.  Select “DataLogger”.
3.  Select “Modules”.
4.  Select “PCM”.
•  When using the PDS (pocket PC)
1.  Select “Module Tests”.
2.  Select “PCM”.
3.  Select “DataLogger”.

3.  Select the simulation items from the PID table.

4.  Perform the simulation function, inspect the operations for each parts.

•  If there is no operation sound from the solenoid after the simulation function inspection is performed, it is possible that there is an open or short circuit in the wiring harness, or solenoid, or sticking and operation malfunction.

Simulation item table

Simulation item

Applicable component

Unit/Condition

PCM terminal

CCS
3-2 timing/coast clutch solenoid
On/Off
20
kPa
20
EPC
Electronic presser control solenoid
kPa
81
SSA/SS1
Shift solenoid A
On/Off
6
SSB/SS2
Shift solenoid B
On/Off
11
TCC
Torque converter clutch control solenoid
%
54
Engaged/Modulated/OFF
54