5A-60 AUTOMATIC TRANSMISSIONDIAGNOSIS
DIAGNOSTIC SYSTEM Recommended T est Equipment and Procedure
The test equipment is designed to be used with the control modules in all vehicles. The components used in the transmission application are: Multi Function Tester, and
Appropriate vehicle for testing.
Multi Function Tester (MFT)
The MFT is programmed with the special vehicle diagnostic software that allows selection of the unit under test.
The program allows the proper communication to the Transmission Control Unit (TCU).
It then requests information from the user via a menu system to select the required set up.
Examples are viewing codes, clearing error codes, and real-time operation. Set up and operation instructions are detailed in the user manual.
This equipment can be used by trained personnel such as technicians and mechanics to diagnose electronic and
wiring problems relating to the vehicle transmission. Information that is available includes engine and road (shaft)
speed, transmission oil temperature, throttle position, solenoid/gear status and gear lever position. Current andstored faults detected by the electronics are also available.
TCU Pin Description The TCU pin descriptions are listed in table 6.1.1. The wiring loom pins are shown in figure 6.1.1
Pin
No. 1 2 3 4 5 6 7 8Identification
Common Ground Do not use Mode Indicator Lamp -‘ Winter ’
Gear Position ‘Park ’
LampGear Position ‘Reverse ’
LampGear Position ‘Neutral ’
LampDo not useEngine Speed Input
Sensor (-Ve) Type
GND -
OP OP OP OP
-
IP Description
Main power ground (or the module. Connects
directly to the battery negative terminal. Indicates ‘WINTER ’ mode shift schedule is se-
lected.
Drives the jewel in the instrument cluster to in-dicate ‘PARK ’ gear lever position.
Drives the jewel in the instrument cluster to in- dicate ‘REVERSE ’ gear lever position.
Drives the jewel in the instrument cluster to in- dicate ‘NEUTRAL ’ gear lever position.
Flywheel/Ring gear pulses to indicate engine speed.
4WD
(Diesel)
O O
4WD
(Gas)
O O O
Table 6.1.1 - TCU Pin Description
5-198 ELECTRICAL WIRING DIAGRAMS
46. TRAILER CONNECTOR CIRCUITb. CONNECTOR IDENTIFICATION SYMBOL & PIN NUMBER POSITION
a. CONNECTOR INFORMATION
C101
W/H MAIN C301
W/H MAIN C303
W/H MAIN
C304
W/H MAIN TAILER
CONNECTOR TAIL LAMP
(LH/RH)
MULTI-FUNCTION SWITCH
12345 6789
10 11 12 13 14 15 16 17 18 19 2012 45
78 3
9 101112 13 6
14
23 4
7
1
6891011 5
1212
34561
345 2C1
C2
C3 C4
B1 B2 B3 B4
B5 B6 B7 B8 B9B10
A1 A2 A3 A4 A5 A6
A7 A8 A9A10 A11 A12 A13 A14
Main - Engine Main - Floor Main - Floor Main - Floor
C101 (21Pin, Colorless)C301 (20Pin, White) C303 (14Pin, White) C304 (12Pin, Colorless)
CONNECTOR(NUMBER)
CONNECTING. WIRING HARNESSCONNECTOR POSITION
Inside The Engine Room Fuse Block Beside The I/P Relay Block Beside The I/P Relay BlockInside Co-Driver Side Cowl Panel58 ILL
31 GND
G303
B
Y
Y
E
f10
Trailer Connector
10A
C101
GW GW GW
GW GW GW
4
24
10
C304
C304
3
3
RH"2" Tail LampGY GY
GY GY
C301
11
1
RH
"5"
GY
LH"5" Tail Lamp
(Stop Lamp)
Stop Lamp
Switch
"2"(M/T,MB A/T) "4"(BTRA A/T)
Ef11 10A
C101
BrR GW GW
GW
2
C301
10
5
LH"2"
"B1"
Multii Function Switch(Turn Signal Switch) Tail Lamp
(Turn Signal Lamp)
"3"
(RH)
W YW
W
6
9
C301
"B2" "3"
(LH)
