2001 SUZUKI GRAND VITARA Hoses

7B1-14 AUTOMATIC TRANSMISSION (4 A/T)
Diagnostic Trouble Code Table
Refer to the same item in Section 6-1.
Fail Safe Table
Refer to the same item in Section 6-1.
Visual Inspection
Visually check following parts and systems.
A/T Basic Check
This inspection is important for troubleshooting when PCM (ECM) has detected no DTC and no abnormality has
been noted in visual inspection. Follow flow table carefully.INSPECTION ITEM REFERRING SECTION
•A/T fluid - - - - - level, leakage, color SECTION 0B
•A/T fluid hoses - - - - - disconnection, looseness, deterioration SECTION 7B1
•Throttle (accelerator) cable - - - - - play, installation SECTION 6E2
•A/T throttle cable - - - - - play, installation SECTION 7B1
•A/T select cable - - - - - installation, operation SECTION 7B1
•Engine oil - - - - - level, leakage SECTION 0B
•Engine coolant - - - - - level, leakage SECTION 0B
•Battery - - - - - fluid level, corrosion of terminal
•Connectors of electric wire harness - - - - - disconnection, friction Section 6-1 or 7B1
•Fuses - - - - - burning SECTION 8
•Parts - - - - - installation, damage
•bolt - - - - - looseness
•Other parts that can be checked visually
•Also check following items at engine start, if possible.
–“O/D OFF” lamp - - - - - Operation SECTION 7B1
–“POWER” lamp - - - - - Operation SECTION 7B1
–Malfunction indicator lamp (“SERVICE ENGINE SOON” lamp) - -
- - - OperationSection 6-1
–Charge warning lamp - - - - - Operation SECTION 6H
–Engine oil pressure warning lamp - - - - - Operation SECTION 8C (SECTION 6A2 for pres-
sure check)
–Engine coolant temp. meter - - - - - Operation
–Other parts that can be checked visually
Step Action Yes No
1Was “AUTOMATIC TRANSMISSION DIAGNOSTIC
FLOW TABLE” performed?Go to Step 2. Go to “AUTOMATIC
TRANSMISSION DIAG-
NOSTIC FLOW TABLE”.
2Perform “MANUAL ROAD TEST” in this section.
Is it OK?Go to Step 3. Go to Step 4.
3Proceed to “TROUBLE DIAGNOSIS TABLE 1” in this
section.
Is trouble identified?Repair or replace
defective parts.Go to Step 5.

DIFFERENTIAL (FRONT) 7E-3
Diagnosis
Differential Assembly Diagnosis Table
4WD Control System Diagnostic Flow Table
Before performing the trouble diagnosis, check that the transfer and front differential are in good condition and
there is no air leakage from air hoses and the actuator. Refer to “4WD CONTROL SYSTEM INSPECTION” in
this section for air leakage.
Notes on system circuit inspection
•Be sure to read “PRECAUTIONS FOR ELECTRICAL CIRCUIT SERVICE” in Section 0A before circuit
inspection and observe what is written there.
•For system circuit, refer to the figure of “GENERAL DESCRIPTION” in this section.
•For terminal arrangement, refer to “4WD CONTROL CIRCUIT INSPECTION” in this section. Condition Possible Cause Correction
Gear noiseDeteriorated or water mixed lubricant Repair and replenish.
Inadequate or insufficient lubricant Repair and replenish.
Maladjusted backlash between bevel pinion and gear Adjust.
Improper tooth contact in the mesh between bevel pinion
and gearAdjust or replace.
Loose bevel gear securing bolts Replace or retighten.
Damaged side gear(s) or side pinion(s) Replace.
Bearing noise(Constant noise) Deteriorated or water mixed lubricant Repair and replenish.
(Constant noise) Inadequate or insufficientlubricant Repair and replenish.
(Noise while coasting) Damaged bearing(s) of bevel pinion Replace.
(Noise while turning) Damaged differential side bearing(s)
or axle bearing(s)Replace.
Oil leakageWorn or damaged oil seal Replace.
Excessive oil Adjust oil level.
Loose differential carrier bolts Replace or retighten.
2WD/4WD
switching errorDefective actuator Replace.
Abnormality in 4WD control system Inspect referring to “4WD
CONTROL SYSTEM DIAG-
NOSTIC FLOW TABLE”.

7F-4 DIFFERENTIAL (REAR)
Precaution for Maintenance Service
•When having driven through water, check immediately if
water has entered (if so, oil is cloudy). Water mixed oil must
be changed at once.
•Whenever vehicle is hoisted for any other service work than
oil change, also be sure to check for oil leakage and status of
breather hoses.
Differential Gear Oil Change
1) Before oil change or inspection, be sure to stop engine and
lift up vehicle horizontally.
2) Check oil level and existence of leakage. If leakage is found,
correct its cause.
3) Drain old oil and pour proper amount of gear oil as specified
(roughly up to level hole).
4) Torque drain plug (3) and level/filler plugs (2) to specification.
“A” : Sealant 99000-31110
Tightening torque
Differential oil level/filler plug (a) :
50 N·m (5.0 kg-m, 36.5 lb-ft)
Differential oil drain plug (b) :
28 N·m (2.8 kg-m, 20.5 lb-ft)
Hypoid gear oil :
API GL-5, SAE 75W-85, 80W-90 or 90
Oil capacity :
2.5 liters (5.3/4.4 US/Imp. pt.) NOTE:
Hypoid gear oil must be used for differential.
It is highly recommended to use SAE 80W-90 viscosity.
1. Breather hose