Suzuki WagonR+ RB310 Service Manual page 2753

7B-22 AUTOMATIC TRANSMISSION (4 A / T)
4) Depress foot brake fully, run engine at idle and stall then check
fluid pressure in "D" or "R" range.
CAUTION:
Do not continue running engine at stall speed longer
than 5 seconds.
Engine running g g
mode
At idle speed
At stall speed
Test result
Line pressure higher
than standard level in
each range
Line pressure lower
than standard level in
each range
Line pressure lower
than standard level
only in "D" range
Line pressure lower
than standard level
only in "R" range
ENGINE BRAKE TEST
WARNING:
Before test, make sure that there is no vehicle behind so as
to prevent rear-end collision.
1) While driving vehicle in 3rd gear of "D" range, shift select lever
down to "2" range and check if engine brake operates.
2) In the same way as in Step 1), check engine brake for operation
when select lever is shifted down to "L" range.
3) Engine brake should operate in above test.
Test result
Fails to operate when shifted
down to "2" range
Fails to operate when shifted
down to "L" range
Line pressure
"D" range
2
7.6 – 9.2 kg/cm 14.1 – 17.3 kg/cm
108.1 – 130.8 psi 200.6 – 246.0 psi
2
7.9 – 9.5 kg/cm 14.4 – 17.6 kg/cm
112.4 – 135.0 psi 204.8 – 250.2 psi
Possible cause
D Malfunctioning regulator valve
D Malfunctioning regulator valve
D Defective oil pump
D Fluid leakage from "D" range
pressure circuit
D Fluid leakage from 1st & 2nd
brake
D Fluid leakage from rear clutch
D Fluid leakage from "R" range
pressure circuit
D Fluid leakage from rear clutch
D Fluid leakage from direct clutch
D Fluid leakage from reverse brake
Possible cause
D Defective shift switch
D 1st & 2nd brake defective D 1st & 2nd brake defective
D Direct clutch defective
"R" range
2
2