Inspection Of Tcm And Its Circuits - Suzuki Wagon R RB310 Supplementary Service Manual

TERMINAL
1 Transmission range "P" switch
2 Transmission range "R" switch
3 Transmission range "N" switch
4 Diagnosis switch
5 Engine speed signal
E12
6 Output shaft speed sensor(+)
7 Input shaft speed sensor(+)
8 throttle opening signal
9 Transmission range "D" switch
10 Transmission range "2" switch
11 Transmission range "L" switch

Inspection of TCM and ITS circuits

TCM and its circuits can be checked at TCM wiring couplers by
measuring voltage and resistance.
CAUTION:
TCM cannot be checked by itself, it is strictly prohibited
to connect voltmeter or ohmmeter to TCM with coupler
disconnected from it.
INSPECTION
1) Remove TCM from vehicle referring to "TRANSMISSION
2) Connect TCM couplers to TCM.
3) Check voltage at each terminal of couplers connected.
NOTE:
As each terminal voltage is affected by the battery volt-
age, confirm that it is 11 V or more when ignition switch
is ON.
1. TCM
2. Couplers
STANDARD
CIRCUIT
VOLTAGE
10 – 14 V
10 – 14 V
10 – 14 V
10 – 14 V
10 – 14 V
10 – 14 V
10 – 14 V
CONTROL MODULE" in this section.
3. Body ground
IG switch ON, selector lever at "P" range
0 – 1 V IG switch ON, selector lever other than "P" range
IG switch ON, selector lever at "R" range
0 – 1 V IG switch ON, selector lever other than "R" range
IG switch ON, selector lever at "N" range
0 – 1 V IG switch ON, selector lever other than "N" range
IG switch ON, diagnosis switch terminal not
grounded
0 – 1 V IG switch ON, leaving engine OFF
–
–
–
IG switch ON, selector lever at "D" range
0 – 1 V IG switch ON, selector lever other than "D" range
IG switch ON, selector lever at "2" range
0 – 1 V IG switch ON, selector lever other than "2" range
IG switch ON, selector lever at "L" range
0 – 1 V IG switch ON, selector lever other than "L" range
AUTOMATIC TRANSMISSION (4 A/T) 7B-49
CONDITION
–
–
–