Isuzu D-Max / Isuzu Rodeo (TFR/TFS). Manual - part 1738

DIAGNOSIS  7A2-3

 

 

PAGE 

No. B12: NOISE OR VIBRATION IS GENERATED AT STARTING ..................................7A2-108 
No. C1: ENGINE RACE UP (SLIP) WHEN GEAR IS SHIFTED UP TO 1st TO 2

nd

........7A2-109 

No. C2: ENGINE RACE UP (SLIP) WHEN GEAR IS SHIFTED UP TO 2nd TO 3

rd

.......7A2-109 

No. C3: ENGINE RACE UP (SLIP) WHEN GEAR IS SHIFTED UP TO 3rd TO 4

th

........7A2-109 

No. C4: ENGINE RACE UP (SLIP) WHEN GEAR IS SHIFT DOWN  ................................7A2-109 
             OR KICK-DOWN TO 4th TO 3

rd

.................................................................................7A2-109 

No. C5: ENGINE RACE UP (SLIP) WHEN GEAR IS SHIFT DOWN OR KICK-DOWN 
 TO 4th TO 2

nd

..............................................................................................................................7A2-109 

No. C6: ENGINE RACE UP (SLIP) WHEN GEAR IS SHIFT DOWN OR KICK-DOWN 
 TO 3rd TO 2

nd

.............................................................................................................................7A2-109 

No. C7: ENGINE RACE UP (SLIP) WHEN GEAR IS SHIFT DOWN TO 4th OR 3

rd

 

 TO 1

st

............................................................................................................................................7A2-109 

No. C8: ENGINE RACE UP (SLIP) OTHERS.........................................................................7A2-109 
No. C9: BARKING FEEL WHEN GEAR IS SHIFTED UP TO 1st TO 2

nd

.........................7A2-112 

No. C10: BARKING FEEL WHEN GEAR IS SHIFTED UP TO 2nd TO 3

rd

......................7A2-112 

No. C11: BARKING FEEL WHEN GEAR IS SHIFTED UP TO 3rd TO 4

th

.......................7A2-112 

No. C12: LARGE SHOCK WHEN GEAR IS SHIFTED TO 1st TO 2

ND

 OR 2nd TO 1

st

..7A2-115 

No. C13: LARGE SHOCK WHEN GEAR IS SHIFTED TO 2nd TO 3

rd

 OR 3rd TO 2

nd

.7A2-115 

No. C14: LARGE SHOCK WHEN GEAR IS SHIFTED TO 3rd TO 4th TO 3

rd

................7A2-115 

No. C15: LARGE SHOCK WHEN KICK-DOWN....................................................................7A2-115 
No. C16: LARGE SHOCK WHEN NO ACCELERATION.....................................................7A2-115 
No. C17: LARGE SHOCK WHEN GEAR IS SHIFTED DOWN TO 2nd TO 
 1st IN L RANGE..........................................................................................................................7A2-115 
No. C18: LARGE SHOCK (OTHER) ........................................................................................7A2-115 
No. C19: LARGE SHOCK WHEN VEHICLE SPEED IS DOWNED BY NO 
 ACCELERATOR PANEL OR VEHICLE IS STOPPED........................................................7A2-115 
No. C20: LARGE LOCK-UP SHOCK.......................................................................................7A2-115 
No. C21: SHIFT DOWN OR ENGINE OVER-RUN WHEN THE ACCELERATION 
 PANE IS STEPPED ON IN 4th GEAR ....................................................................................7A2-115 
NO. D1: FAULTY GEAR SHIFTING (DIFFERENT FROM SHIFT PATTERN)............... 7A2-116 
NO. D2: GEAR IS SHIFTED FREQUENTLY ................................................................. 7A2-121 

7A2-4  DIAGNOSIS

 

 

PAGE 

NO. D3: GEAR SHIFT POINT IS LOW OR HIGH AT ALL POINT................................. 7A2-121 
NO. D4: GEAR SHIFT POINT IS LOW OR HIGH AT LIMITED POINT ......................... 7A2-121 
NO. D5: NO KICK-DOWN.............................................................................................. 7A2-121 
NO. E1: NO GEAR SHIFT.............................................................................................. 7A2-122 
NO. E2: ONLY 4TH GEAR (O/D) IS NOT SELECTABLE ............................................. 7A2-125 
NO. E3: GEAR IS SHIFTED 2ND TO 3RD IN 2 RANGE ............................................... 7A2-128 
NO. E4: GEAR IS SHIFTED 1ST TO 2ND IN L RANGE................................................ 7A2-128 
NO. E5: GEAR IS SHIFTED 3RD TO 4TH IN 3 RANGE................................................ 7A2-128 
NO. F1: LOW MAXIMUM SPEED OR POOR ACCELERATION ................................... 7A2-129 
NO. F2: ENGINE RACES UP DURING ACCELERATION (SLIP) ................................. 7A2-132 
NO. F3: NOISE OR VIBRATION DURING THE RUNNING IN R, D, 3, 2 OR L RANGE7A2-132 
NO. F4: ENGINE BRAKE DOES NOT APPLY IN L RANGE......................................... 7A2-132 
NO. F5: ENGINE STALLS BEFORE VEHICLE STOPS FROM RUNNING................... 7A2-133 
NO. G1: VEHICLE MOVES IN P RANGE OR PARKING GEAR IS NOT 
 DISENGAGED OTHER THAN P RANGE ..................................................................... 7A2-133 
NO. G2: CREEP FORCE IS LARGE.............................................................................. 7A2-133 
NO. G3: CREEP FORCE IS SMALL.............................................................................. 7A2-134 
NO. G4: LARGE NOISE DURING IDLING WITH THE VEHICLE IN STOP STATE...... 7A2-135 
NO. H1: JUDDER OCCURS AT THE LOCK-UP ........................................................... 7A2-135 
NO. H2: LARGE LOCK-UP SHOCK.............................................................................. 7A2-135 
NO. H3: LOCK-UP POINT IS HIGH OR LOW ............................................................... 7A2-135 
NO. I1: NO LOCK-UP .................................................................................................... 7A2-135 
NO. J1: OIL LEAKS FROM BREATHER....................................................................... 7A2-136 
NO. J2: OIL LEAKS BETWEEN ENGINE AND CONVERTER HOUSING.................... 7A2-138 
NO. J3: OIL LEAKS BETWEEN MAIN CASE AND CONVERTER HOUSING.............. 7A2-138 
NO. J4: OIL LEAKS BETWEEN MAIN CASE AND REAR HOUSING .......................... 7A2-138 
NO. J5: OIL LEAKS FROM OIL PAN ............................................................................ 7A2-138 
NO. J6: OIL LEAKS FROM MANUAL SHAFT OIL SEAL ............................................. 7A2-138 
NO. J7: OIL LEAKS FROM OIL COOLER PIPE JOINT................................................ 7A2-138 
NO. Z1: TRANSMISSION OVERHEAT.......................................................................... 7A2-138 
NO. Z2: MODE LAMP (POWER DRIVE OR 3RD START) DOES NOT LIGHT UP 
 WHEN THE POWER MODE OR 3RD START MODE IS TURNED ON........................ 7A2-139 

DIAGNOSIS  7A2-5

 

 

PAGE 

NO. Z3: MODE LAMP (POWER DRIVE OR 3RD START) LIGHTS UP WHEN 
 THE POWER MODE OR 3RD START MODE IS TURNED OFF.................................. 7A2-139 
NO. Z4: OIL TEMPERATURE WARNING LAMP LIGHTS UP ...................................... 7A2-139 
NO. Z5: SELECT LEVER FEELING IS FAULTY. .......................................................... 7A2-139 
NO. Z6: POOR FUEL CONSUMPTION ......................................................................... 7A2-140 
NO. Z7: PATTERN SELECT SWITCH IS FAULTY........................................................ 7A2-140 
NO. Z8: OIL IS SPLASHED DURING THE RUNNING .................................................. 7A2-140 
NO. Z9: ABNORMAL SMELL ........................................................................................ 7A2-140 
NO. Z10: ATF QUANTITY IS LOW OR HIGH................................................................ 7A2-140 
NO. Z11: ABNORMAL OIL PRESSURE........................................................................ 7A2-141 
NO. Z12: REVERSE BUZZER DOES NOT RING.......................................................... 7A2-141 
STALL TEST .................................................................................................................. 7A2-142 
LINE PRESSURE TEST................................................................................................. 7A2-143 
TIME LAG TEST............................................................................................................. 7A2-145 
TEST DRIVE................................................................................................................... 7A2-146 
SHIFT POINT CHART .................................................................................................... 7A2-149 
SHIFT POINT DIAGRAM................................................................................................ 7A2-151 
TCM VOLTAGE CHECK ................................................................................................ 7A2-156 

 

7A2-6  DIAGNOSIS

 

BASIC TROUBLE SHOOTING 

 
Transmission fluid pressure together with clutch and brake friction and other important transmission functions are 
controlled by electrical signal from the Transmission Control Module (TCM). 
Random diagnosis can produce inaccurate and misleading indications. It is important that diagnosing procedure be 
carried out systematically. 
Carefully follow the sequence outlined below to diagnose automatic transmission assembly. 
 

 

 
   

Verify Customer Complain 

Preliminary Check 

(Visual Check/Test Drive) 

Compare to Same Model 

(If Available) 

Check Service Bulletin 

DTC Check 

(Self-diagnosis/Tech 2) 

Go to Symptom Diagnosis 

Stall Test 

Line Pressure Test 

Transmission Overhaul 

Repair & Verify Fix 

Transmission Overhaul 

Transmission Overhaul 

Go to DTC Chart 

Go to Intermittent Diagnosis

NG

Follow the instructions

NG

No Instruction 

NG

OK

NO DTC

Not Solved 

OK

OK

Follow the Bulletin

(Once Clear Memory)  Restored

Not Stored

Use Service Programming 

System (SPS) 

Not Solved