
AUTOMATIC TRANSMISSION AND DIFFERENTIAL 3-2
6. Diagnostic Chart for On-board Diagnostic System
6. Diagnostic Chart for On-board
Diagnostic System
A: BASIC DIAGNOSTICS PROCEDURE
TROUBLE OCCURS.
INTERVIEW
1. Oil level check
2. Oil leak check
3. Brake band adjustment
4. Stall test
Indicated.
5. Line pressure test TEMP INDICATOR)
6. Transfer clutch pressure test
Not indicated.
7. Time lag test DIAGNOSTICS
8. Road test
OK No trouble code
Inspection using Diagnostic Chart
with Select Monitor 3-2 [T800]
Inspection using General Diagnostic Not OK Trouble code
Table 3-2 [T900].
Repair.
Check in
accordance
trouble code 3-2
[T700].
CLEAR MEMORY
Trouble code
Confirmation test
(ON-BOARD DIAGNOSTICS)
No trouble code
End
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3-2 AUTOMATIC TRANSMISSION AND DIFFERENTIAL
6. Diagnostic Chart for On-board Diagnostic System
B: ABNORMAL DISPLAY ON AT OIL TEMP
INDICATOR
When any on-board diagnostic item is malfunctioning, the
display on the AT OIL TEMP indicator blinks immediately
after the engine starts.
The malfunctioning part or unit can be determined by a
trouble code during on-board diagnostic operation. Prob-
lems which occurred previously can also be identified
through the memory function.
If the AT OIL TEMP indicator does not show a problem
(although a problem is occurring), the problem can be
determined by checking the performance characteristics of
each sensor using the select monitor.
Indicator signal is as shown in the figure.
WARNING:
Warning can be noticed only when the engine is ini-
tially started.
B3M0410A
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AUTOMATIC TRANSMISSION AND DIFFERENTIAL 3-2
6. Diagnostic Chart for On-board Diagnostic System
C: ON-BOARD DIAGNOSTICS
* : Blinks every 0.125 (1/8) seconds (until ignition switch is turned OFF).
** : Blinks every 0.25 (1/4) seconds (until ignition switch is turned OFF).
*** : Plug in diagnosis terminal to diagnosis connector No. 5 located below instrument lower cover.
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3-2 AUTOMATIC TRANSMISSION AND DIFFERENTIAL
6. Diagnostic Chart for On-board Diagnostic System
D: LIST OF TROUBLE CODE
1. TROUBLE CODE
Abbr.
Trouble code Item Content of diagnosis Page
(Select monitor)
Detects open or shorted drive
11 Duty solenoid A PLDTY 16
circuit, as well as valve seizure.
Detects open or shorted drive
12 Duty solenoid B LUDTY 20
circuit, as well as valve seizure.
Detects open or shorted drive
13 Shift solenoid 3 OVR 24
circuit, as well as valve seizure.
Detects open or shorted drive
14 Shift solenoid 2 SFT2 26
circuit, as well as valve seizure.
Detects open or shorted drive
15 Shift solenoid 1 SFT1 28
circuit, as well as valve seizure.
Detects open or shorted input
21 ATF temperature sensor ATFT 30
signal circuit.
Detects open or shorted input
22 Mass air flow signal AFM 33
signal circuit.
Detects open or shorted input
23 Engine speed signal EREV 35
signal circuit.
Detects open or shorted drive
24 Duty solenoid C 4WDTY 37
circuit, as well as valve seizure.
Detects open or shorted input
25 Torque control signal TQ.CT 39
signal circuit.
Detects open or shorted input
31 Throttle position sensor THV 41
signal circuit.
Detects open or shorted input
32 Vehicle speed sensor 1 VSP1 44
signal circuit.
Detects open or shorted input
33 Vehicle speed sensor 2 VSP2 48
signal circuit.
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AUTOMATIC TRANSMISSION AND DIFFERENTIAL 3-2
6. Diagnostic Chart for On-board Diagnostic System
2. HOW TO READ TROUBLE CODE OF INDICATOR
LIGHT
The AT OIL TEMP indicator light flashes the code corre-
sponding to the faulty part.
The long segment (1.2 sec on) indicates a "ten", and the
short segment (0.2 sec on) signifies a "one".
B3M0193A
E: CLEAR MEMORY
Current trouble codes shown on the display are cleared by
turning the ignition switch OFF after conducting on-board
diagnostic operation. Previous trouble codes, however,
cannot be cleared since they are stored in the TCM
memory which is operating on the back-up power supply.
These trouble codes can be cleared by removing the speci-
fied fuse (located under the right lower portion of the instru-
ment panel).
CLEAR MEMORY:
Removal of No. 14 fuse (for at least one minute)