Isuzu D-Max / Isuzu Rodeo (TFR/TFS). Manual — part 1737

CONSTRUCTION AND FUNCTION 7A1-45

4th Gear (O/D) in D Range
The driving force from the input shaft is transmitted to the rear sun gear and reverse & high clutch drum.
Since the 2-4 brake is engaged, the front sun gear is fixed. As a result, the front pinion gear rotates both
itself and together with other gears clockwise. This rotation increases the speed of rotation of the front
internal gear and is transmitted to the output shaft.

MEMO

DIAGNOSIS 7A2-1

SECTION 7A2

DIAGNOSIS

TABLE OF CONTENTS

PAGE

BASIC TROUBLE SHOOTING. . . . . . . . . . . . . . . . . . . . . . . . ..7A2-6
CHECK TRANS INDICATOR & SELF DIAGNOSIS. . . . . . . . . . . . . . . ..7A2-7
DIAGNOSIS WITH TECH 2. . . . . . . . . . . . . . . . . . . . . . . . . . 7A2-9
TECH 2 OPERATING FLOW CHART (START UP) . . . . . . . . . . . . . . . ..7A2-10
TYPICAL SCAN DATA. . . . . . . . . . . . . . . . . . . . . . . . . . . . 7A2-13
MISCELLANEOUS TEST. . . . . . . . . . . . . . . . . . . . . . . . . . ...7A2-14
INTERMITTENT DIAGNOSIS . . . . . . . . . . . . . . . . . . . . . . . . . 7A2-16
SNAPSHOT DISPLAY WITH TIS 2000. . . . . . . . . . . . . . . . . . . . . 7A2-17
CIRCUIT DIAGRAM. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7A2-23
PART LOCATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7A2-25
CONNECTOR LIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7A2-29
DIAGNOSIS TROUBLE CODE TABLE . . . . . . . . . . . . . . . . . . . . ...7A2-31
FAIL-SAFE FUNCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . ..7A2-33
DTC P0722 (FLASH CODE 11) VEHICLE SPEED SENSOR NO SIGNAL . . . . . ..7A2-34
DTC P0727 (FLASH CODE 13) ENGINE REVOLUTION SENSOR NO SIGNAL. . . 7A2-36
DTC P0717 (FLASH CODE 14) TURBINE SPEED SENSOR NO SIGNAL. . . . . ..7A2-38
DTC P0710 (FLASH CODE 15) ATF TEMPERATURE SENSOR FAILURE . . . . . 7A2-40
DTC P0560 (FLASH CODE 16) SYSTEM VOLTAGE FAILURE . . . . . . . . . . 7A2-42
DTC P0705 (FLASH CODE 17) INHIBITOR SWITCH FAILURE. . . . . . . . . . 7A2-43
DTC P1120 (FLASH CODE 22) THROTTLE SIGNAL FAILURE. . . . . . . . . . 7A2-46
DTC P1875 (FLASH CODE 25) GND RETURN CIRCUIT FAILURE . . . . . . . . .7A2-48
DTC P0753 (FLASH CODE 31) LOW & REVERSE BRAKE DUTY
SOLENOID FAILURE . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7A2-49
DTC P0758 (FLASH CODE 32) 2-4 BRAKE DUTY SOLENOID FAILURE . . . . . ..7A2-52
DTC P0763 (FLASH CODE 33) HIGH CLUTCH DUTY SOLENOID FAILURE. . . . 7A2-55
DTC P0768 (FLASH CODE 34) LOW CLUTCH DUTY SOLENOID FAILURE . . . . 7A2-58

7A2-2 DIAGNOSIS

PAGE

DTC P0748 (FLASH CODE 35) LINE PRESSURE SOLENOID FAILURE. . . . . ...7A2-61
DTC P1860 (FLASH CODE 36) LOCK-UP DUTY SOLENOID FAILURE. . . . . . .7A2-63
DTC P1853 (FLASH CODE 26) LOW & REVERSE BRAKE PRESSURE
SWITCH FAILURE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..7A2-65
DTC P1858 (FLASH CODE 27) 2-4 BRAKE PRESSURE SWITCH FAILURE . . . . 7A2-69
DTC P1863 (FLASH CODE 28) HIGH CLUTCH PRESSURE SWITCH FAILURE. . ..7A2-73
DTC P0731 (FLASH CODE 41) 1st GEAR RATIO ERROR . . . . . . . . . . . . 7A2-77
DTC P0732 (FLASH CODE 42) 2nd GEAR RATIO ERROR. . . . . . . . . . . ...7A2-77
DTC P0733 (FLASH CODE 43) 3rd GEAR RATIO ERROR. . . . . . . . . . . . 7A2-77
DTC P0734 (FLASH CODE 44) 4th GEAR RATIO ERROR. . . . . . . . . . . . 7A2-77
DTC P1750 (FLASH CODE 51) LOW & REVERSE BRAKE FAIL-SAFE
VALVE FAILURE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7A2-79
DTC P1755 (FLASH CODE 52) 2-4 BRAKE FAIL-SAFE VALVE FAILURE . . . . . 7A2-81
DTC P0602 Programming Error. . . . . . . . . . . . . . . . . . . . ... 7A2-83
SYMPTOM DIAGNOSIS . . . . . . . . . . . . . . . . . . . . . . . . . . . .7A2-84
SYMPTOM DIAGNOSIS TABLE. . . . . . . . . . . . . . . . . . . . . . . ...7A2-85
No. A1: VEHICLE DOES NOT RUN IN D, 3, 2, L and RANGE . . . . . . . . . . ..7A2-94
No. A2: VEHICLE DOES NOT RUN IN R RANGE . . . . . . . . . . . . . . . . 7A2-95
No. A3: VEHICLE DOES NOT RUN IN D, 3, 2 and RANGE. . . . . . . . . . . ...7A2-96
No. B1: VEHICLE RUNS IN N RANGE . . . . . . . . . . . . . . . . . . . . ...7A2-97
No. B2: POOR ACCELERATION AT STARTING . . . . . . . . . . . . . . . . .7A2-98
No. B3: ENGINE RACE UP DURING STARTING (SLIP) . . . . . . . . . . . . . 7A2-101
No. B4: LARGE SHOCK WHEN SHIFT LEVER IS CHANGED TO N TO D
RANGE OR N TO R RANGE . . . . . . . . . . . . . . . . . . . . . . . . . 7A2-104
No. B5: ENGINE STALLS WHEN SELECTING FROM N RANGE TO R, D, 3, 2
OR L RANGE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...7A2-105
No. B6: ENGINE STARTER DOES NOT RUN IN P OR N RANGE . . . . . . . . ...7A2-107
No. B7: ENGINE STARTER RUNS EXCEPT IN P OR N RANGE . . . . . . . . . .7A2-107
No. B8: EXTENDED TIME LAG WHEN SHIFT LEVER IS CHANGED TO N TO D. . 7A2-107
No. B9: EXTENDED TIME LAG WHEN SHIFT LEVER IS CHANGED TO N TO R. . 7A2-107
No. B10: BRAKE IS APPLIED IN R RANGE. . . . . . . . . . . . . . . . . . ..7A2-108
No. B11: INSUFFICIENT STARTING OR SHAKING IN D RANGE . . . . . . . . ...7A2-108