7B1-32
AUTOMATIC TRANSMISSION (4 A / T)
TABLE A-1: NO GEAR SHIFT TO O/D
SYSTEM DESCRIPTION
TCM does not shift to O / D gear under any of the following conditions.
D
O / D off switch is ON. (“O / D OFF” lamp ON.)
D
4WD low switch is ON.
D
Output shaft speed sensor is in faulty condition. (P0720)
TROUBLESHOOTING
WARNING
D
When performing a road test, select a place where there is no traffic or possibility of a traffic accident
and be very careful during testing to avoid occurrence of an accident.
D
Road test should be carried out with 2 persons, a driver and tester, on a level road.
Step
Action
Yes
No
1
Was “A / T DIAGNOSTIC FLOW TABLE” in this
section performed?
Go to Step 2.
Go to “A / T DIAGNOSTIC
FLOW TABLE” in this
section.
2
Check DTC.
Is DTC P0720 detected?
Perform “TROUBLE
DIAGNOSIS TABLE” to
repair and retry.
Go to Step 3.
3
Perform running test under the following
conditions and check voltage between
terminal E203-4 of TCM connector and
ground, terminal E203-3 of TCM connector
and ground.
D
O / D off switch is OFF.
D
Selector lever is in “D” range.
D
Transfer lever is in “2H” position.
D
Drive vehicle with 4th gear condition referring
to “GEAR SHIFT DIAGRAM” in this section.
Is each terminal voltage 0 – 1 V?
Faulty shift solenoid
valve, circuit or
transmission.
“GRN” or “GRN / RED”
circuit shorted to power
circuit. If wire is OK, go to
Step 4.
4
“O / D” off switch signal inspection.
With ignition switch ON, check voltage
between terminal E202-3 of TCM connector
and ground.
O / D off switch OFF : 10 – 14 V
O / D off switch ON : 0 – 1 V
Is result as specified?
Go to Step 5.
Faulty O / D off switch or
its circuit.
If OK, substitute a known-
good TCM and recheck.
5
4WD low switch signal inspection
With ignition switch ON, check voltage
between terminal E202-1 of TCM connector
and ground.
Transfer gear position “4L” or “N”
: 0 – 1 V
Transfer gear position “2H” or “4H” : 10 – 14 V
Is result as specified?
Substitute a known-good
TCM and recheck.
Faulty 4WD low switch or
its circuit.
If OK, substitute a known-
good TCM and recheck.
Содержание GRAND VITARA XL-7
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