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Suzuki Grand Vitara JB416 / JB420. Manual - part 236

5A-78 Automatic Transmission/Transaxle:

Reference Waveform No. 5
Input shaft speed sensor signal at engine speed 3000
rpm.

TCM Power and Ground Circuit Check

S5JB0A5104062

Wiring Diagram

Measurement
terminal

CH1: “E93-6” to “E92-1”

Oscilloscope
setting

CH1: 2 V/DIV
TIME: 10 ms/DIV

Measurement
condition

• After warmed up to normal

operating temperature

• Engine at 3,000 rpm with “P”

range.

I5JB0A510047-02

BLK

E92-1

E92-23

E92-6

BLK/WHT

WHT/GRN

E92-24

WHT

16 15 14 13 12 11

4 3

24 23

10 9

18 17

E92

17 16

26 25

15 14

13 12

23 22

11 10 9

21 20 19

8 7

E93

I5JB0A510152-01

1. TCM

5. Ignition switch

2. A/T relay

6. “IG COIL” fuse

3. “AT” fuse

7. Power integration No.2 in main fuse box

4. “DOME” fuse

8. Terminal arrangement of TCM connector (viewed from harness side)

Automatic Transmission/Transaxle: 5A-79

Troubleshooting

Step

Action

Yes

Check TCM back-up power circuit
1) Disconnect TCM connector with ignition switch OFF.
2) Check for proper connection to TCM at “E92-24”

terminal.

3) If OK, check voltage at terminal “E92-24” of

disconnected TCM connector.

Is it 10 – 14 V?

Go to Step 2.

“WHT” circuit open or
shorted to ground.

Check TCM power circuit
1) Disconnect TCM connector with ignition switch OFF.
2) Check for proper connection to TCM at “E92-6” terminal.
3) If OK, turn ignition switch ON and check voltage at

terminal “E92-6” of disconnected TCM connector.

Is it 10 – 14 V?

Go to Step 4.

Go to Step 3.

Check A/T relay operation
1) Check A/T relay operation referring to “A/T Relay

Inspection”.

Is check result satisfactory?

“BLK/WHT”, “WHT/
GRN”, or “BLK” circuit
for power supply open.

Replace A/T relay
included in power
integration No.2 in main
fuse box.

Check TCM ground circuit
1) Turn ignition switch OFF.
2) With TCM connectors disconnected, check for proper

connection to TCM at “E92-1” / “E92-23” terminal.

3) If OK, check resistance between “E92-1” / “E92-23”

terminal of disconnected TCM connector and body
ground.

Is continuity indicated?

TCM power and ground
circuits are in good
condition.

“BLK” circuit for TCM
ground open.

5A-80 Automatic Transmission/Transaxle:

Repair Instructions

A/T Fluid Level Check

S5JB0A5106041

At Normal Operating Temperature

1) Drive vehicle so that A/T fluid temperature reach the

normal operating temperature (70 – 80

°C (158 –

176

°F)).

2) Stop vehicle with engine running and place it level.
3) With select lever at “P” range, apply parking brake

and place chocks against wheels.

4) Keep engine idling and shift selector slowly to “L”

and back to “P” range.

5) With engine idling, pull out dipstick (1), wipe it off

with a clean cloth and put it back into place.

6) Pull out dipstick (1) again and check fluid level

indicated on it. Fluid level should be between FULL
HOT and LOW HOT. If it is below LOW HOT, add
specified A/T fluid up to FULL HOT.

A/T fluid specification
SUZUKI ATF 3317 or Mobil ATF 3309

NOTE

• DO NOT RACE ENGINE while checking

fluid level, even after engine is started.

• DO NOT OVERFILL. Overfilling can causes

foaming and loss of fluid through breather.
Then slippage and transmission failure can
result.

• If vehicle was driven under high load such

as pulling a trailer, fluid level should be
checked about half an hour after it is
stopped.

• When checking oil level, oil level gauge

must be used in proper direction. Insert oil
level gauge so that its front or back face is
directed to the front of vehicle. When oil
level indicated on front face of oil level
gauge differs from that on back face, use
lower one.

At Room Temperature
The fluid level check at room temperature performed
after repair or fluid change before test driving is just
preparation for level check of normal operating
temperature. The checking procedure itself is the same
as that described in “At Normal Operating Temperature”
under “A/T Fluid Level Check”. If the fluid level is
between FULL COLD and LOW COLD, proceed to test
drive. And when the fluid temperature has reached the
normal operating temperature, check fluid level again
and adjust it as necessary.

2. “FULL HOT”

4. “FULL COLD”

3. “LOW HOT”

5. “LOW COLD”

1. Dipstick

3. “LOW COLD”

2. “FULL COLD”

I5JB0A510028-02

I5JB0A510029-02

Automatic Transmission/Transaxle: 5A-81

A/T Fluid Change

S5JB0A5106042

1) Lift up vehicle.
2) When engine is cool, remove drain plug (1) from oil

pan and drain A/T fluid.

3) Install drain plug with new gasket.

Tightening torque
A/T fluid drain plug (a): 20 N·m (2.0 kgf-m, 14.5
lb-ft)

4) Lower vehicle and fill proper amount of specified

fluid.

5) Check fluid level referring to “At Normal Operating

Temperature” under “A/T Fluid Level Check”.

A/T fluid specification
: SUZUKI ATF 3317 or Mobil ATF 3309

A/T fluid capacity reference value
When draining from drain plug hole: Approx. 2.5
liters (5.33/4.40 US/lmp. pt.)
When overhauling: Approx. 7.2 liters (15.36/12.67
US/lmp. pt.)

Manual Selector Assembly Components

S5JB0A5106043

1. Dipstick

4. “FULL COLD”

2. “FULL HOT”

5. “LOW COLD”

3. “LOW HOT”

1, (a)

I5JB0A510030-03

I5JB0A510031-02

1. Manual lever assembly
2. Select indicator assembly
3. Illumination lamp assembly
4. Knob
5. Manual selector assembly mounting bolt
6. Slide cover

: 17.5 N

⋅m (1.75 kgf-m, 13.0 lb-ft)

(a)

I5JB0A510033-01

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