Isuzu D-Max / Isuzu Rodeo (TFR/TFS). Manual — part 1772
DIAGNOSIS 7A2-139
No. Z2: Mode Lamp (Power Drive or 3rd Start) Does Not Light Up
When The Power Mode or 3rd Start Mode is Turned On
Description:
•
The mode lamp on the instrument panel does not light up though the power mode or 3rd start mode is turned on
with the ignition switch in ON position.
Possible Cause:
•
Faulty mode select switch is considered.
•
Bulb burn out.
No. Z3: Mode Lamp (Power Drive or 3rd Start) Lights Up When
The Power Mode or 3rd Start Mode is Turned Off
Description:
•
The mode lamp on the instrument panel lights up though the power mode or 3rd start mode is turned off with the
ignition switch in ON position.
Possible Cause:
•
Faulty mode select switch is considered.
No. Z4: Oil Temperature Warning Lamp Lights up
Description:
•
Sometimes, the oil temperature warning lamp lights up.
Possible Cause:
•
When the vehicle is stuck in the mud or continues to accelerate under overload, and ATF temperature exceeds
145
°
C, the oil temperature warning lamp lights up.
•
If the oil temperature warning lamp lights up under usual service condition, following causes are considered.
•
ATF level has increased for some fault.
Refer to "No. Z1: Transmission overheat".
•
Lights up due to error of the ATF oil thermo sensor.
No. Z5: Select Lever Feeling is Faulty.
Description:
•
Select lever feeling is faulty.
Possible Cause:
•
Disordered select cable.
•
Disordered select lever.
•
Faulty Manual plate.
7A2-140 DIAGNOSIS
No. Z6: Poor Fuel Consumption
Description:
•
Poor
fuel
consumption.
Diagnosis Hints:
•
Basically same causes as "No. C1 - C8: Engine races up (slip) by shift up or shift down" are considered.
No. Z7: Pattern Select Switch is Faulty
Description:
•
Shift pattern does not change though the pattern select switch is turned on.
Possible Cause:
•
Faulty mode select switch is considered.
No. Z8: Oil is Splashed During the Running
Description:
•
Oil is splashed during the running
Possible Cause:
•
ATF quantity is too high.
No. Z9: Abnormal Smell
Description:
•
Abnormal
smell.
Diagnosis Hints:
•
Basically a trouble in the AT main unit.
No. Z10: ATF Quantity is Low or High
Description:
•
Oil quantity is low or high.
Possible Cause:
•
In case of oil level is high.
ATF temperature is low when ATF quantity is checked.
•
In case of oil level is low.
ATF leaks is considered. Check the AT main unit and cooler circuit.
DIAGNOSIS 7A2-141
No. Z11: Abnormal Oil Pressure
Description:
•
Oil pressure is low or high.
Possible Cause:
•
Basically, the same cause as "No. C1 - C8: Engine races up (slip) by shift up or shift down" is considered.
•
In case of oil pressure is low, faulty oil pump is considered.
No. Z12: Reverse Buzzer Does Not Ring
Description:
•
Reverse buzzer does not ring in R range.
Possible Cause:
•
Disordered select cable.
•
Disordered select lever.
•
Disordered inhibitor switch.
DIAGNOSIS 7A2-142
STALL TEST
CAUTION:
Because A/T may break down, do not perform the stall test continuously.
Procedure
1.
Chock the four wheels.
2.
Warm up the engine.
3.
Apply the parking brake.
4.
Step on the foot brake fully.
5.
Set the select lever to either D, 3, 2, L or R range.
6.
Step on the accelerator pedal fully.
7.
When the engine speed becomes constant, record that
value quickly.
Stall Speed
Standard: 2600±150 rpm
Evaluation
1.
If the stall speed is higher than standard value in all
ranges.
•
Low line pressure.
•
Abraded oil pump.
•
Faulty operation of low clutch.
•
Adjustment error of or faulty inhibitor switch.
•
ATF leaking from oil pump, control valve, or
transmission case.
•
Fixed pressure regulator valve and pilot valve.
2.
If the stall speed is higher than standard value in D, 3, 2
and L ranges.
•
Slip of low clutch.
•
Slip of low one-way clutch.
3.
If the stall speed is higher than standard value in R
range.
•
Slip of low & reverse brake.
•
Slip of reverse clutch.
4.
If the stall speed is lower than standard value in all
ranges.
•
Slip of one-way clutch (in torque converter).
•
Faulty engine.
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