Suzuki Grand Vitara SQ416/SQ420/420WD

since 1998 release

Repair and operation of the car



Suzuki Grand Vitara
+ General information
+ Maintenance and lubricant
+ Heater, ventilation and conditioner
+ Steering
+ Suspension bracket
+ Wheels and tires
+ Forward driving shaft / bearing of a shaft. Oil epiploon
+ Driveshafts
+ Brake system
+ Engines
+ Fuel system
+ System of ignition
+ System of start
+ System of release
- Transmissions
   + Mechanical transmission (type 1)
   + Mechanical transmission (type 2)
   - Automatic transmission (4 A/T)
      + General description
      + Diagnostics of the automatic transmission
      + Precautionary measures at diagnostics of malfunctions
      - Visual survey
         Main check of automatic transmission
         Tables of diagnostics of malfunctions
         Verification of the electrical circuitry of light
         Codes of malfunctions
         Check of linear pressure
         Test in a garage
         Test on the road
         Manual test on the road
         Delay check
         Check of a motor brake
         Check of range of "P"
      + Service out of a workshop
      + System of blocking of brakes
      + Check of system
+ Coupling
+ Transfer
+ Forward and back differentials
+ Windows, mirrors, locks and security measures. Immobilizer
+ Electric equipment


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Tables of diagnostics of malfunctions

Table of diagnostics of malfunctions 1

State

Possible reason

Elimination

TSS does not work

Table of diagnostics A-1

The lower switch of the four-wheel drive or its scheme are faulty

The sensor of temperature of cooling liquid of the engine or its scheme are faulty

The scheme of a signal "cruise control" is faulty (if is available)

Transfer does not switch to the 4th

The switch of interruption of the raising transfer or its scheme are faulty

Table of diagnostics A-2

The lower switch of the four-wheel drive or its scheme are faulty

The sensor of temperature of cooling liquid of the engine or its scheme are faulty

The scheme of a signal "cruise control" is faulty (if is available)

Table of diagnostics of malfunctions 2

Liquid of the automatic transmission

State

Possible reason

Elimination

Low pressure of liquid

The filter of the oil pump got littered

Wash out the filter

Pressure regulator valve is faulty

Repair the valve

High pressure of liquid

Pressure regulator valve

Repair the valve

Condition of work

State

Possible reason

Elimination

Cannot work in all provisions

Jamming of the valve of the regulator

To replace

The filter of the oil pump got littered

Wash out the filter

Planetary transfer is jammed or broken

Repair or replacement

Faulty manual valve

To replace

Bad work of the 1st speed or excessive sliding in situation "D" or "2"

The valve 1-2 switchings is faulty

To replace

Gear shifting

State

Possible reason

Elimination

Bad switching 1-2, excessive sliding

Jamming of the valve of the regulator

To replace

Jamming of the valve of switching 1-2

To replace

Jamming of the solenoidal valve pereklyucheniya-V

To replace

Jamming of the valve of the intermediate modulator of a setup

To replace

Bad switching 2-3, excessive sliding

Jamming of the valve of switching 2-3

To replace

Jamming of the solenoidal valve pereklyucheniya-A

To replace

Bad start or breakthroughs in situation "D"

Jamming of the valve of the regulator

To replace

Bad switching 3-4, excessive sliding

Jamming of the valve of switching 3-4

To replace

Jamming of the solenoidal valve pereklyucheniya-V

To replace

Excessive breakthrough when switching 1-2

Jamming of the valve of the regulator

To replace

Faulty accumulator, second brake piston

To replace

Excessive breakthrough when switching 2-3

Jamming of the valve of the regulator

To replace

Faulty accumulator, piston of direct coupling

To replace

Excessive breakthrough when switching 1-2

Jamming of the valve of the regulator

To replace

The system of blocking does not work

Jamming of the TSS valve (blocking)

To replace

Jamming of the solenoidal valve No. 2 (TSS solenoidal valve)

To replace

Table of diagnostics of malfunctions 3

Liquid of the automatic transmission

State

Possible reason

Elimination

Low pressure of liquid

Leak in the scheme of pressure of oil

Repair

Condition of work

State

Possible reason

Elimination

Cannot work in all provisions

Wear of the oil pump

To replace

Jamming in the oil pump

To replace

Leak in system of pressure of liquid in the coupling of the raising transfer because of wear of the plug of the oil pump

To replace

Faulty hydrotransformer

To replace

Bad work of the 1st speed or excessive sliding in situation "D" or "2"

Leak in system of pressure of liquid from forward coupling because of wear or breakage of an omental ring of the case of the raising transfer

To replace

Sliding of coupling of the raising transfer

To replace

Cannot work or excessive sliding in situation "L"

Leak in system of pressure of liquid from forward coupling because of wear or breakage of an omental ring of the case of the raising transfer

To replace

Sliding of a disk of a brake of a backing

To replace

The Au-shaped ring of the brake piston is broken

To replace

Cannot work or excessive sliding in situation "R"

Leak in system of pressure of liquid in the direct coupling because of wear or breakage of an omental ring of the central support

To replace

The direct coupling is worn-out

To replace

Gear shifting

State

Possible reason

Elimination

Bad switching 1-2, excessive sliding

Leak in system of pressure of liquid in the coupling of the raising transfer because of wear or breakage of an omental ring of the case of the raising transfer

To replace

Faulty second brake

To replace

The Au-shaped ring of the second brake piston is broken

To replace

The second brake of a setup is faulty (in situation "2")

To replace

Bad switching 2-3, excessive sliding

Leak in system of pressure of liquid in the coupling of the raising transfer because of wear or breakage of an omental ring of the case of the raising transfer

To replace

The plug of the direct coupling is worn-out

To replace

Sliding of the direct coupling

To replace

Alien material got to a control ball of the piston of the direct coupling

To replace

Bad start or breakthroughs in situation "D"

Leak in system of pressure of liquid of forward coupling because of wear or breakage of an omental ring of the case of the raising transfer

To replace

Malfunction of forward coupling

To replace

State

Possible reason

Elimination

Bad switching 3-4, excessive sliding

Faulty brake of the raising transfer

To replace

Faulty coupling of the raising transfer

To replace

Bad start or the tolchkoobrazny movement in situation "R"

Leak in system of pressure of liquid of the direct coupling because of wear or breakage of an oil omental ring of the central support

To replace

Excessive breakthrough when switching 1-2

The coupling of a free wheeling is faulty

To replace

The system of blocking does not work

Faulty hydrotransformer

To replace

Uncharacteristic noise

State

Possible reason

Elimination

Uncharacteristic noise in situation "P" and "N"

The oil pump is worn-out

To replace

The table of diagnostics of malfunctions A-1 (TSS is not blocked)

Description of system

The electronic control unit switches off the TSS solenoid at any of the following states:

    Brake pedal switch: INCL. LOWER switch of the four-wheel drive: INCL. Cruise control module: the team signal OFF to TCC is given (if is available). The transmission with electronic control (ECT): ECT <30 °C (86 °F)

Identification of malfunctions

  • 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.

Step

Action

Yes

No

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 transmission (eats) with electronic control:

Warm the engine up to the normal working temperature.

Check eats with the help сканирующ. tool. Temperature eats more than 30 °C (86 °F)?

You pass to a step 3

Eats faulty sensor, its scheme or cooling system of the engine. If everything is normal, replace with a serviceable electronic control unit and recheck

3

Execute test in the movement under following conditions and check tension between the terminal of a hitch of an electronic control unit C51-1-8 (at G16/J20 engines) and "earth"

* The normal mode in situation "D"

* Provision of a 2H broadcast

* "Cruise control" is not included (if is available)

* The pedal of a brake is released

* Move on the car with the included TSS

This tension of the battery?

Faulty valve of the TSS solenoid, its scheme or transmission

You pass to a step 4

5

Check of a signal of the switch of a brake:

At the switched-on switch of ignition check tension between the terminal of a hitch of an electronic control unit E61-63 and "earth".

Specification of a signal of the switch of a brake

The pedal of a brake is released: 0 Volts

The pedal of a brake is pressed: battery tension

Result such, how in the specification?

You pass to a step 6

Faulty switch of a pedal of a brake or its scheme. If everything is normal, replace with the serviceable block of electronic control and recheck

6

Check of a signal of the lower switch of the four-wheel drive

At the switched-on switch of ignition check tension between the terminal of a hitch of an electronic control unit C51-1-26 (at G16/J20 engines) and "earth"

Specification of a signal of the lower switch of the four-wheel drive

Provision of switching of a 4L or N broadcast: 0 B

Provision of switching of a 4H or 2H broadcast: battery tension

Result such, how in the specification?

You pass to a step 7

Faulty lower switch of the four-wheel drive or its scheme. If everything is normal, replace with the serviceable block of electronic control and recheck

7

On the car there is a cruise control system?

You pass to a step 8

Replace with the serviceable block of electronic control and recheck

8

Check of a signal "cruise control":

At the switched-on switch of ignition check tension between the terminal of a hitch of an electronic control unit E61-35 (at G16/J20 engines) and "earth"

This tension of the battery?

Replace with the serviceable block of electronic control and recheck

Faulty cruise control module or its scheme. If everything is normal, replace with the serviceable block of electronic control and recheck

The table of diagnostics of malfunctions A-2 (there is no switching to the raising transfer)

Description of system

The electronic control unit does not switch to the raising transfer at any of the following states:

    The switch of interruption of the raising transfer: INCL. LOWER switch of the four-wheel drive: INCL. Cruise control module: the team signal OFF the raising transfer is given (if is available). The transmission with electronic control (ECT): ECT <30 °C (86 °F)

Identification of malfunctions

  • 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.

Step

Action

Yes

No

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 transmission (eats) with electronic control:

Warm the engine up to the normal working temperature.

Check eats with the help сканирующ. tool. Temperature eats more than 30 °C (86 °F)?

You pass to a step 3

Eats faulty sensor, its scheme or cooling system of the engine. If everything is normal, replace with a serviceable electronic control unit and recheck

3

Execute test in the movement under following conditions and check tension between the terminal of a hitch of an electronic control unit C51-1-2 (at G16/J20 engines) and "earth", the terminal of a hitch of an electronic control unit C51-1-1 and "earth"

* The switch of interruption of the raising transfer is switched off (The bulb "the raising transfer is switched off" does not burn)

* The normal mode in situation "D"

* Provision of a 2H broadcast

* "Cruise control" is not included (if is available)

* Move on the car on the 4th transfer as it is described in this section in "The scheme of gear shifting"

Each voltage is about 0 Volts?

Faulty valve of the solenoid of switching, its scheme or transmission

Conducting of "G" or "G/R" is closed on a power chain. If everything is normal, pass to a step 4

4

Check of a signal of the switch of interruption of the raising transfer:

At the switched-on switch of ignition check tension between the terminal of a hitch of an electronic control unit E61-33 (at G16/J20 engines) and "earth"

The specification of a signal of the switch of interruption of the raising transfer

The switch of interruption of the raising transfer is switched off: battery tension

The switch of interruption of the raising transfer is switched on: 0 Volts

Result such, how in the specification?

You pass to a step 5

The faulty switch of interruption of the raising transfer or its scheme. If everything is normal, replace with the serviceable block of electronic control and recheck

5

Check of a signal of the lower switch of the four-wheel drive

At the switched-on switch of ignition check tension between the terminal of a hitch of an electronic control unit C51-1-26 (at G16/J20 engines) and "earth"

Specification of a signal of the lower switch of the four-wheel drive

Provision of switching of a 4L or N broadcast: 0 B

Provision of switching of a 4H or 2H broadcast: battery tension

Result such, how in the specification?

You pass to a step 6

Faulty lower switch of the four-wheel drive or its scheme. If everything is normal, replace with the serviceable block of electronic control and recheck

6

On the car there is a cruise control system?

You pass to a step 7

Replace with the serviceable block of electronic control and recheck

7

Check of a signal "cruise control":

At the switched-on switch of ignition check tension between the terminal of a hitch of an electronic control unit E61-35 (at G16/J20 engines) and "earth"

This tension of the battery?

Replace with the serviceable block of electronic control and recheck

Faulty cruise control module or its scheme. If everything is normal, replace with the serviceable block of electronic control and recheck