Suzuki Grand Vitara SQ416/SQ420/420WD

1 — an electronic control unit
2 — J/B
3 — the sensor (switch) of provision of transmission
Color designations of wires

* A signal of the switch of provision of transmission (P, R, N, D, 2 or L) does not arrive within 25 seconds at a speed of car of 60 km/h (38 miles/h) or more.

or

* At the same time the set of signals in 25 seconds arrives (logic of definition on 2 motion cycles)

* The sensor (switch) of provision of transmission is incorrectly adjusted.

* The sensor (switch) of provision of transmission or its scheme is faulty.

* Electronic control unit

• When carrying out tests on the road choose the place where there is no movement or probability of road accident, and be very careful during test not to have an accident.
• On the road two persons, the driver and the tester, on the flat road have to carry out test.

 PERFORMANCE ORDER

1

Instructions of the Table of diagnostics of the automatic transmission are executed?

You pass to a step 2

You pass to the Table of diagnostics of the automatic transmission

2

Check work of an electrochain of the switch (sensor) of provision of transmission.

When the scanning SUZUKI tool is used:

At the switched-off switch of ignition attach the scanning SUZUKI tool to the diagnostic socket

Turn on the switch of ignition and check a signal of provision of transmission on the display (P, R, N, D, 2 or L), switching the switching lever to each situation

The relevant provision is highlighted?

When the scanning SUZUKI tool is not used:

Turn on the ignition switch.

Check tension on contacts of C 51-1-15, C 51-1-16, C 51-1-17, C 51-1-18, C 51-1-27 and C 51-1-28 for G16/J20 engines respectively, switching the lever to each situation

Take for an example contacts of C 51-1-28 for G16/J20 and look whether battery tension only is highlighted when the lever of switching of transfer is switched to situation "2", and in other provisions voltage of 0 Volts?

Similarly, being guided by the drawing, check tension on other contacts

Results of check are satisfactory?

Problem of intermittence of a chain. Check for intermittence as it is described in the Head the General information in the Section Interrupted or weak connection

You pass to a step 3

3

Check adjustment of a cable of the choice of transfer as it is described in this Chapter in the Section the Cable of gear shifting

It is adjusted correctly?

You pass to a step 4

Adjust

4

Check the provision of installation at the switch of provision of transmission

Switch the lever of the choice of transfer to situation "N"

Check that the control N line on the switch and the central line on a shaft coincided

They coincide?

You pass to a step 5

Adjust

5

Check the switch (sensor) of provision of transmission as it is described in this section, in the Section Switch (sensor) of range of transmission

Results of check are satisfactory?

In a chain of "Y", "Or/G", "R", "Or/Bl", "Y/G", "G/Or" or "G/Bl" short circuit or gap. If wires and connections as it should be, replace with the serviceable block of electronic control and recheck

Replace the TR switch.

A — G16/J20 Engines
1 — an electronic control unit (PCM)
2 — the sensor of the entering speed of the automatic transmission

A — G16/J20 Engines

The speed determined by the sensor of the entering speed is less, than specified in the specification when the car moves under following conditions:

* at a speed more than 10 km/h (7 miles/h) with the 1st transfer in situation D within 1 second or it is more

* at a speed more than 20 km/h (13 miles/h) with the 2nd transfer in situation D within 2 seconds or it is more

* at a speed more than 30 km/h (20 miles/h) with the 3rd transfer in situation D within 2 seconds or it is more (logic of definition on 2 motion cycles)

* The sensor of the entering speed and its electrical circuitry.

* Electronic control unit.

• When carrying out tests on the road choose the place where there is no movement or probability of road accident, and be very careful during test not to have an accident.
• On the road two persons, the driver and the tester, on the flat road have to carry out test.

 PERFORMANCE ORDER

1

Instructions of the Table of diagnostics of the automatic transmission are executed?

You pass to a step 2

You pass to the Table of diagnostics of the automatic transmission

2

Verification of the electrical circuitry of the sensor of the entering speed:

Uncover an electronic control unit.

At the switched-off switch of ignition disconnect sockets of an electronic control unit.

Check connection with the sensor of the entering speed on contacts of C 51-1-10 and C 51-1-11 for G16/J20

If everything is all right, check sensor chain resistance. Resistance between C 51-1-10 and C 51-1-11 for G16/J20: 530 – 650 at 20 °C, 68 °F

Resistance between C 51-1-10/C 51-1-11 for G16/J20: 1 M or more.

Results of check are satisfactory?

You pass to a step 4

You pass to a step 3

3

Check of the sensor of the entering speed:

At the switched-off switch of ignition disconnect the socket of the sensor of the entering speed.

Check connection with the sensor of the entering speed on all contacts.

If everything is all right, check resistance of the sensor of the entering speed.

The measured values correspond specified in a step 2?

Conducting of "Bl/G" or "Bl/Y" is opened or closed on "earth"

Replace the sensor of the entering speed

4

Visually check the sensor of the entering speed and the clutch drum of the raising transfer that there was no following:

* Damages

* The stuck alien materials

* That it was correctly established

They in good shape?

Problem of intermittence of a chain or faulty electronic control unit. Check for intermittence as it is described in the Head the General information in the Section Interrupted or weak connection

Clean, repair or replace

A — G16/J20 Engines
1 — an electronic control unit (RSM)
2 — the speed sensor at the exit of the automatic transmission

A — G16/J20 Engines

* At the switched-off lower switch of the four-wheel drive the speed sensor signal at the exit does not arrive though signals of the sensor of speed of the car arrive

or

* At the switched-off lower switch of the four-wheel drive the speed sensor signal at the exit does not arrive though the engine works at speed above stated in situation "D" (logic of definition on 2 motion cycles)

* The speed sensor at the exit of the automatic transmission or its electrical circuitry

* Electronic control unit

• When carrying out tests on the road choose the place where there is no movement or probability of road accident, and be very careful during test not to have an accident.
• On the road two persons, the driver and the tester, on the flat road have to carry out test.

 PERFORMANCE ORDER

1

Instructions of the Table of diagnostics of the automatic transmission are executed?

You pass to a step 2

You pass to the Table of diagnostics of the automatic transmission

2

Verification of the electrical circuitry of the sensor of speed at the exit:

Uncover an electronic control unit.

At the switched-off switch of ignition disconnect sockets of an electronic control unit.

Check connection with the sensor of the entering speed on contacts of C 51-1-22 and C 51-1-23 for G16/J20

If everything is all right, check sensor chain resistance. Resistance between C 51-1-22 and C 51-1-23 for G16/J20: 387 – 473 at 20 °C, 68 °F

Resistance between C 51-1-122/C 51-1-23 for G16/J20 and "earth": 1 M or more

Results of check are satisfactory?

You pass to a step 4

You pass to a step 3

3

Check of the sensor of speed at the exit:

At the switched-off switch of ignition disconnect the speed sensor socket at the exit

Check connection with the speed sensor at the exit on all contacts

If everything is all right, check speed sensor resistance at the exit

The measured values correspond specified in a step 2?

Conducting of "O" or "W" is opened or closed on "earth"

Replace the speed sensor at the exit

4

Visually check the speed sensor at the exit and the rotor sensor that there was no following:

* Damages

* The stuck alien materials

* That were correctly established

They in good shape?

Problem of intermittence of a chain or faulty electronic control unit. Check for intermittence as it is described in the Head the General information in the Section Interrupted or weak connection

Clean, repair or replace

* At the movement on the 2nd or 4th transfer, in situation"" control of TSS of an electronic control unit will not be coordinated by D with real work of TSS of transmission, even in spite of the fact that the solenoidal valve in a good electric shape (logic of definition on 2 motion cycles)

* Jamming of the TSS solenoidal valve (blocking)

* Jamming of the TSS control valve

* The channel for liquid in the valve case is littered

* TSS is faulty

• When carrying out tests on the road choose the place where there is no movement or probability of road accident, and be very careful during test not to have an accident.
• On the road two persons, the driver and the tester, on the flat road have to carry out test.

 PERFORMANCE ORDER

1

Instructions of the Table of diagnostics of the automatic transmission are executed?

You pass to a step 2

You pass to the Table of diagnostics of the automatic transmission

2

Check of the TSS solenoidal valve:

Check operation of the TSS solenoidal valve as it is described in this Chapter in the Section Solenoidal valves.

It in good shape?

You pass to a step 3

TSS faulty solenoidal valve

3

Check of the case of the valve:

Check the valve case as it is described in this Chapter in the Section Servicing

It in good shape?

Faulty hydrotransformer

Faulty case of the valve

A — G16/J20 Engines
1 — an electronic control unit (RSM)
2 — the solenoid pereklyucheniya-A

3 — the solenoid pereklyucheniya-V
4 — the TSS solenoid

A — G16/J20 Engines

Tension on contact of C 51-1-8 for G16/J20 of an electronic control unit (RSM) high at team OFF the TSS solenoid, and low voltage at team INCL. the TSS solenoid

* TSS solenoidal valve (blocking)

* Electrical circuitry of the TSS solenoidal valve (blocking)

* Electronic control unit

• When carrying out tests on the road choose the place where there is no movement or probability of road accident, and be very careful during test not to have an accident.
• On the road two persons, the driver and the tester, on the flat road have to carry out test.

 PERFORMANCE ORDER

1

Instructions of the Table of diagnostics of the automatic transmission are executed?

You pass to a step 2

You pass to the Table of diagnostics of the automatic transmission

2

On the car there is a socket for the monitor?

You pass to a step 3

You pass to a step 4

3

Malfunction No. 65 code?

You pass to a step 4

You pass to a step 6

4

Check an electrochain of a solenodid of TSS for a gap or short circuit:

Switch off the switch of ignition and disconnect sockets of the Electronic control unit (RSM)

Check connection with an electronic control unit (RSM) on contacts of C 51-1-8 for G16/J20

If everything is all right, measure resistance between contact of C 51-1-8 for G16/J20 of the disconnected socket of an electronic control unit and "earth"

Resistance 11 – 15 at 20 °C, 68 °F?

You pass to a step 5

The chain of "G/Y" is broken off or closed on "earth". If wires and contacts as it should be, replace the faulty solenoid of switching

5

Check a TSS solenoid chain for short circuit

Turn on the ignition switch.

Measure tension between contact of C 51-1-8 for G16/J20 of the disconnected socket of an electronic control unit and "earth"

Voltage is more than 0 Volts?

Problem of intermittence of a chain or faulty electronic control unit. Check for intermittence as it is described in the Head the General information in the Section Interrupted or weak connection

The chain of "G/Y" is closed on a power chain

6

Check a TSS solenoid chain for short circuit

Switch off the switch of ignition and disconnect sockets of an electronic control unit (RSM)

Check connection with an electronic control unit (RSM) on contacts of C 51-1-8 for G16/J20 or S51-1-1

If everything is all right, measure resistance between contact of C 51-1-8 for G16/J20 of the disconnected socket of an electronic control unit (RSM) and "earth"

Resistance 11 – 15 at 20 °C, 68 °F?

Problem of intermittence of a chain or faulty electronic control unit. Check for intermittence as it is described in the Head the General information in the Section Interrupted or weak connection

The chain of "G/Y" is closed on "earth". If wires and contacts as it should be, replace the faulty solenoid of switching

At the movement in situation D management of transfer switching of an electronic control unit (RSM) will not be coordinated with the real situation of the switch of the automatic transmission even in spite of the fact that the solenoidal valve is in a good electric shape

The provision of transfer of the automatic transmission is calculated on the basis of a signal of speed of the engine and a signal of the sensor of speed of the car (the logician of definition on 2 motion cycles)

Code of malfunction P0751:

* The solenoidal valve pereklyucheniya-A is jammed or in it leak

* The valve of switching 2-3 is jammed or in it leak

* The channel for liquid in the valve case got littered

* Mechanical malfunction in transmission (malfunction of direct coupling)

Code of malfunction P0756:

* The solenoidal valve pereklyucheniya-V is jammed or in it leak

* The valve of switching 1-2 is jammed

* The valve of switching 3-4 is jammed

* The channel for liquid in the valve case got littered

* Mechanical malfunction in transmission (malfunction of the second brake)

• When carrying out tests on the road choose the place where there is no movement or probability of road accident, and be very careful during test not to have an accident.
• On the road two persons, the driver and the tester, on the flat road have to carry out test.

 PERFORMANCE ORDER

1

Instructions of the Table of diagnostics of the automatic transmission are executed?

You pass to a step 2

You pass to the Table of diagnostics of the automatic transmission

2

Check of operation of the solenoidal valve pereklyucheniya-A or – In:

Check operation of the solenoidal valve pereklyucheniya-A or – In as it is described in this Chapter in the Section Solenoidal valves.

It in good shape?

You pass to a step 3

The faulty solenoidal valve pereklyucheniya-A or – In

3

Check of the case of the valve:

Check the case of the valve and its channel as it is described in the Section Servicing

They in good shape?

Repair the automatic transmission

Faulty case of the valve

A — G16/J20 Engines
1 — an electronic control unit (RSM)
2 — the solenoid pereklyucheniya-A

3 — the solenoid pereklyucheniya-V
4 — the TSS solenoid

A — G16/J20 Engines

Code of malfunction P0753:

Tension on contact of C 51-1-2 for G 6/J20 is specified in the specification or below when the solenoidal valve pereklyucheniya-A is switched on, or specified in the specification or above when it is switched off.

* Solenoidal valve pereklyucheniya-A

* Chain of the solenoidal valve pereklyucheniya-A

* Electronic control unit (RSM)

Code of malfunction P0758:

Tension on contact of C 51-1-1 is specified in the specification or below when the solenoidal valve pereklyucheniya-V is switched on, or specified in the specification or above when it is switched off.

* Solenoidal valve pereklyucheniya-V

* Chain of the solenoidal valve pereklyucheniya-V

* Electronic control unit (RSM)

• When carrying out tests on the road choose the place where there is no movement or probability of road accident, and be very careful during test not to have an accident.
• On the road two persons, the driver and the tester, on the flat road have to carry out test.

 PERFORMANCE ORDER

1

Instructions of the Table of diagnostics of the automatic transmission are executed?

You pass to a step 2

You pass to the Table of diagnostics of the automatic transmission

2

On the car there is a socket for the monitor?

You pass to a step 3

You pass to a step 4

3

Code of malfunction No. 61 or 63?

You pass to a step 4

You pass to a step 6

4

Check a solenoid electrochain for a gap or short circuit:

Switch off the switch of ignition and disconnect sockets of an electronic control unit (RSM)

Check connection with an electronic control unit (RSM) on contacts of C 51-1-2 for G16/J20 or S51-1-1

If everything is all right, measure resistance between contact of C 51-1-2 for G16/J20 or S51-1-1 of the disconnected socket of an electronic control unit and "earth"

Resistance 11 – 15 at 20 °C, 68 °F?

You pass to a step 5

The chain of "G" or "G/R" is broken off or closed on "earth". If wires and contacts as it should be, replace the faulty solenoid of switching

5

Check a solenoid chain for short circuit

Turn on the ignition switch.

Measure tension between contact of C 51-1-2 for G16/J20 or S51-1-1 of the disconnected socket of an electronic control unit and "earth"

Voltage is about 0 Volts?

Problem of intermittence of a chain or faulty electronic control unit. Check for intermittence as it is described in the Head the General information in the Section Interrupted or weak connection

The chain of "G" or "G/R" is closed on a power chain

6

Check a solenoid chain for short circuit

Switch off the switch of ignition and disconnect sockets of an electronic control unit (RSM)

2) Check connection with an electronic control unit (RSM) on contacts of C 51-1-2 for G16/J20 or S51-1-1

If everything is all right, measure resistance between contact of C 51-1-2 for G16/J20 or S51-1-1 of the disconnected socket of an electronic control unit (RSM) and "earth"

Resistance 11 – 15 at 20 °C, 68 °F?

Problem of intermittence of a chain or faulty electronic control unit. Check for intermittence as it is described in the Head the General information in the Section Interrupted or weak connection

The chain of "G" or "G/R" is closed on "earth"

A — G16/J20 Engines
1 — an electronic control unit (RSM)

2 — the lower switch of the four-wheel drive
3 — J/C

At the movement on speeds above stated and with big, than it is specified, a throttle gleam, the following conditions are satisfactory for the specified time

* The car speed determined by the car speed sensor is 10 km/h more, than the speed determined by the speed sensor at the exit of the automatic transmission (the logician of definition on 2 motion cycles)

* Lower switch of the four-wheel drive or its electrical circuitry

Electronic control unit (RSM)

• When carrying out tests on the road choose the place where there is no movement or probability of road accident, and be very careful during test not to have an accident.
• On the road two persons, the driver and the tester, on the flat road have to carry out test.

 PERFORMANCE ORDER

1

Instructions of the Table of diagnostics of the automatic transmission are executed?

You pass to a step 2

You pass to the Table of diagnostics of the automatic transmission

2

Check of the lower switch of the four-wheel drive and its electrical circuitry:

By means of the scanning SUZUKI tool:

At the switched-off switch of ignition attach the scanning SUZUKI tool to the diagnostic socket

Turn on the ignition switch.

On the scanning tool choose the List of Data mode

Check on the display a signal of the lower switch of the four-wheel drive (INCL. or OFF) when switching transfer to each situation

Situation 4H or 2H: OFF.

Situation 4L: INCL.

The signal of VYKL/VKL. is highlighted how it is described above?

Without the scanning SUZUKI tool:

Uncover an electronic control unit (RSM)

Turn on the ignition switch

Check tension on contact of C 51-1-26 for G16/J20 of the socket of the electronic control unit which is becoming isolated when switching the lever of transfer to each situation

Situation 4H or 2H: 10-14 Volts

Situation 4L: 0-1 Volt

Tension is such how it is specified?

Check quality of connection on contact of an electronic control unit if in a step 2 the voltmeter is used

If connection as it should be, problem of intermittence of a chain or faulty electronic control unit. Check for intermittence as it is described in the Head the General information in the Section Interrupted or weak connection

You pass to a step 3

3

Check of the lower switch of the four-wheel drive:

Check operation of the lower switch of the four-wheel drive as below in the subsection Check of the Lower Switch of the Four-wheel Drive is described

Results of check are satisfactory?

Short circuit or rupture of a chain of "Or/W" or "B". If wires and sockets as it should be, replace with a serviceable electronic control unit and recheck

Replace the lower switch of the four-wheel drive

 PERFORMANCE ORDER