2007 ISUZU KB P190 Workshop Repair Manual

brake sensor technical specifications torque deactivate passenger airbag brake fluid inflation pressure

Page 4385 of 6020

ISUZU KB P190 2007 Workshop Repair Manual TRANSMISSION CONTROL SYSTEM (JR405E) 7A2-101
J1Transmission fluid leaks from breatherJ2
Transmission fluid leaks between engine
and converter housing
J3
Transmission fluid leaks between converter

TRANSMISSION CONTROL SYSTEM (JR405E) 7A2-101
J1Transmission fluid leaks from breatherJ2
Transmission fluid leaks between engine
and converter housing
J3
Transmission fluid leaks between converter
housing and transmission case
J4
Transmission fluid leaks between
transmission case and extension housing
J5 Transmission fluid leaks from oil panJ6
Transmission fluid leaks from manual shaft
oil seal
J7
Transmission fluid leaks from oil cooler pipe
joint
Z1 Transmission overheatZ2
Mode lamp (power drive or 3rd start) does
not turn On
Z3
Mode lamp (power drive or 3rd start) does
not turn Off
Z4 A/T oil temperature lamp turns OnZ5Selector lever feeling is faultyZ6Poor fuel consumptionZ7Shift indicator is faultyZ8Abnormal smellZ9Transmission fluid quantity is low or highZ10 Transmission fluid quantity is low or highZ11Abnormal transmission fluid pressure
Error, open or short circuit
Error, open or short circuit
Error, open or short circuit
Error, open or short circuit
Open or short circuit
Open or short circuit
Open or short circuit
Error, open or short circuit
Open or short circuit
Open or short circuit
Open or short circuit
Open or short circuit
Open or short circuit
Open or short circuit
Open or short circuit
Open or short circuit
Open or short circuit
Open or short circuit
Out of standard value
Faulty operation
Faulty operation
Faulty operation
Faulty operation
Faulty operation
Faulty operation
Faulty operation
Clogged passage
Clogged passage
Clogged passage
Clogged passage
Clogged passage
Clogged passage
Clogged passage
Slip
Seizure
Faulty operation
Separation
Faulty operation
Engine speed signal
Accelerator pedal position signal
Input shaft speed sensor
Output shaft speed sensor
Power drive or 3rd start switch
Transmission range switch
TCM power or ground
Transmission fluid temperature sensor
Pressure control solenoid
Torque converter clutch solenoid
Low & reverse brake solenoid
2-4 brake solenoid
High clutch solenoid
Low clutch solenoid
Ground return circuit
Low & reverse brake fluid pressure switch
2-4 brake fluid pressure switch
High clutch fluid pressure switch
Transmission fluid quantity
Control spool valve
High clutch solenoid accumulator
Low clutch solenoid accumulator
Low & reverse brake solenoid accumulator
2-4 brake solenoid accumulator
High clutch accumulator
2-4 brake accumulator
Pressure control solenoid hydraulic circuit
Torque converter clutch hydraulic circuit
High clutch solenoid hydraulic circuit
Low clutch solenoid hydraulic circuit
Low & reverse brake solenoid hydraulic circuit
2-4 brake solenoid hydraulic circuit
Oil cooler
Torque converter
Clutch (brake)
Torque converter clutch piston
Hydraulic control
Powertrain
Diagnostic category

Possible causes
Electrical
Disordered selector lever cable
Disordered transmission range switch
Faulty line pressure
Faulty engine idle speed

BACK TO CHAPTER INDEX
TO MODEL INDEX
ISUZU KB P190 2007

Page 4386 of 6020

ISUZU KB P190 2007 Workshop Repair Manual 7A2-102 TRANSMISSION CONTROL SYSTEM (JR405E)
A1: Vehicle Does Not Run in D, 3, 2 L and R Range
A2: Vehicle Does Not Run in R Range
ChecksAction
Definition:
Vehicle does not run even though the acc

7A2-102 TRANSMISSION CONTROL SYSTEM (JR405E)
A1: Vehicle Does Not Run in D, 3, 2 L and R Range
A2: Vehicle Does Not Run in R Range
ChecksAction
Definition:
Vehicle does not run even though the accelerator pedal is being stepped on.
Diagnosis Hints Trouble in transmission main unit is suspected. The trouble in the transmission main
unit may originate from the input circuits or output circuits; these circuits should also be
checked to prevent a reoccurrence of the trouble.
Transmission Range Switch &
Selector Lever Cable Checks Inspect the transmission range switch and selector lever cable for misadjusting or
disordering. Refer to On-Vehicle Service section.
Transmission Fluid Checks Inspect the transmission fluid for the following conditions. If the transmission fluid is
extremely blacked, contaminated or smells burnt, slipping of clutch is suspected.
• Low quantity
• Contamination
•Smell
Line Pressure Checks Inspect the line pressure in all ranges for a possible dropped pressure. Refer to Line
Pressure Test in Test Instruction section.
Stall Speed Checks Inspect the stall speed in all ranges. Refer to Stall Test in Test Instruction section.
Control Valve Body Checks Inspect the valve body for the following conditions.
• Faulty operation
• Sticking spool valve
• Sticking shift solenoid valve. Perform function check. Refer to On-Vehicle Service section.
• Clogged hydraulic circuit
Torque Converter Checks Inspect the torque converter for faulty operation or sticking.
Clutch and Brake Checks Inspect the low clutch, reverse clutch, low one-way clutch and low & reverse brake for
slipping.
Additional Checks • Inspect the parking mechanism for faulty operation.
• Inspect the engine for proper outputs.
Checks Action
Definition:
Vehicle does not run in R range only. It runs correctly in forward range.
Diagnosis Hints Trouble in transmission main unit is suspected. The trouble in the transmission main
unit may originate from the input circuits or output circuits; these circuits should also
be checked to prevent a reoccurrence of the trouble.
Transmission Range Switch &
Selector Lever Cable Checks Inspect the transmission range switch and selector lever cable for misadjusting or
disordering. Refer to On-Vehicle Service section.
Transmission Fluid Checks Inspect the transmission fluid for the following conditions. If the transmission fluid is
extremely blacked, contaminated or smells burnt, slipping of clutch is suspected.
• Low quantity
• Contamination
•Smell
Line Pressure Checks Inspect the line pressure in R range for a possible dropped pressure. Refer to Line
Pressure Test in Test Instruction section.
Stall Speed Checks Inspect the stall speed in R range. Refer to Stall Test in Test Instruction section.

BACK TO CHAPTER INDEX
TO MODEL INDEX
ISUZU KB P190 2007

Page 4387 of 6020

ISUZU KB P190 2007 Workshop Repair Manual TRANSMISSION CONTROL SYSTEM (JR405E) 7A2-103
A3: Vehicle Does Not Run in D, 3, 2 and L Range
B1: Vehicle Runs in N Range
Control Valve Body Checks Inspect the valve body for the following condition

TRANSMISSION CONTROL SYSTEM (JR405E) 7A2-103
A3: Vehicle Does Not Run in D, 3, 2 and L Range
B1: Vehicle Runs in N Range
Control Valve Body Checks Inspect the valve body for the following conditions.
• Faulty operation
• Sticking spool valve
• Sticking shift solenoid valve. Perform function check. Refer to On-Vehicle Service section.
• Clogged hydraulic circuit
Torque Converter Checks Inspect the torque converter for faulty operation or sticking.
Clutch and Brake Checks Inspect the reverse clutch and low & reverse brake for slipping.
Additional Checks • Inspect the parking mechanism for faulty operation.
• Inspect the engine for proper outputs.
Checks
Action
Checks Action
Definition:
Vehicle does not run in D, 3, 2 and L range only. It runs correctly in R range.
Diagnosis Hints Trouble in transmission main unit is suspected. The trouble in the transmission main
unit may originate from the input circuits or output circuits; these circuits should also be
checked to prevent a reoccurrence of the trouble.
Transmission Range Switch &
Selector Lever Cable Checks Inspect the transmission range switch and selector lever cable for misadjusting or
disordering. Refer to On-Vehicle Service section.
Transmission Fluid Checks Inspect the transmission fluid for the following conditions. If the transmission fluid is
extremely blacked, contaminated or smells burnt, slipping of clutch is suspected.
• Low quantity
• Contamination
•Smell
Line Pressure Checks Inspect the line pressure in forward ranges for a possible dropped pressure. Refer to
Line Pressure Test in Test Instruction section.
Stall Speed Checks Inspect the stall speed in forward ranges. Refer to Stall Test in Test Instruction section.
Control Valve Body Checks Inspect the valve body for the following conditions.
• Faulty operation
• Sticking spool valve
• Sticking shift solenoid valve. Perform function check. Refer to On-Vehicle Service section.
• Clogged hydraulic circuit
Torque Converter Checks Inspect the torque converter for faulty operation or sticking.
Clutch and Brake Checks Inspect the low clutch and low one-way clutch for slipping.
Additional Checks • Inspect the parking mechanism for faulty operation.
• Inspect the engine for proper outputs.
Checks Action
Definition:
Creeping force appears in N range. Vehicle moves unless the brake pedal is stepped on in N range.
Diagnosis Hints Trouble in transmission main unit is suspected. The trouble in the transmission main
unit may originate from the input circuits or output circuits; these circuits should also be
checked to prevent a reoccurrence of the trouble.
Transmission Range Switch &
Selector Lever Cable Checks Inspect the transmission range switch and selector lever cable for misadjusting or
disordering. Refer to On-Vehicle Service section.

BACK TO CHAPTER INDEX
TO MODEL INDEX
ISUZU KB P190 2007

Page 4388 of 6020

ISUZU KB P190 2007 Workshop Repair Manual 7A2-104 TRANSMISSION CONTROL SYSTEM (JR405E)
B2: Poor Acceleration at Starting
Transmission Fluid ChecksInspect the transmission fluid for the following conditions. If the transmission fluid is
ext

7A2-104 TRANSMISSION CONTROL SYSTEM (JR405E)
B2: Poor Acceleration at Starting
Transmission Fluid ChecksInspect the transmission fluid for the following conditions. If the transmission fluid is
extremely blacked, contaminated or smells burnt, slipping of clutch is suspected.
• Low quantity
• Contamination
•Smell
Control Valve Body Checks Inspect the valve body for the following conditions.
• Faulty operation
• Sticking spool valve
• Sticking shift solenoid valve. Perform function check. Refer to On-Vehicle Service section.
• Clogged hydraulic circuit
Clutch and Brake Checks Inspect the low clutch, reverse clutch, low one-way clutch and low & reverse brake for
seizing.
Checks
Action
ChecksAction
Definition:
Starting acceleration is poor.
Diagnosis Hints In addition to the low engine output, faulty gearshift of the transmission or fixing at the
3rd gear in the fail-safe operation may also be possible. Therefore, if “maximum speed
is low, and acceleration is poor”, it should be cleared up whether the trouble originates
from the engine system or transmission control system by a running test, inspection of
stall speed, etc.
Transmission Range Switch &
Selector Lever Cable Checks Inspect the transmission range switch and selector lever cable for misadjusting or
disordering. Refer to On-Vehicle Service section.
Transmission Fluid Checks Inspect the transmission fluid for the following conditions. If the transmission fluid is
extremely blacked, contaminated or smells burnt, slipping of clutch is suspected.
• Low quantity
• Contamination
•Smell
Line Pressure Checks Inspect the line pressure in forward ranges for a possible dropped pressure. Refer to
Line Pressure Test in Test Instruction section.
Stall Speed Checks Inspect the stall speed in forward ranges. Refer to Stall Test in Test Instruction section.
Control Valve Body Checks Inspect the valve body for the following conditions.
• Faulty operation
• Sticking spool valve
• Sticking shift solenoid valve. Perform function check. Refer to On-Vehicle Service section.
• Clogged hydraulic circuit
Torque Converter Checks Inspect the torque converter for faulty operation.
Clutch and Brake Checks Inspect the low clutch and high clutch for slipping.
Additional Checks • Inspect the engine for proper outputs. Refer to appropriate inspection chart in
engine section.
• Inspect the TCM grounds for being clean, tight, and in their proper locations.
• Observe the Accelerator Pedal Position (APP). APP parameter should change linearly from 0 to 99 or 100% according to the accelerator pedal operation.

BACK TO CHAPTER INDEX
TO MODEL INDEX
ISUZU KB P190 2007

Page 4389 of 6020

ISUZU KB P190 2007 Workshop Repair Manual TRANSMISSION CONTROL SYSTEM (JR405E) 7A2-105
B3: Engine Races Up During Starting (Slip)
B4: Large Shock When Selector Lever is Changed from N to D Range or N to R Range
Checks Action
Definition:
T

TRANSMISSION CONTROL SYSTEM (JR405E) 7A2-105
B3: Engine Races Up During Starting (Slip)
B4: Large Shock When Selector Lever is Changed from N to D Range or N to R Range
Checks Action
Definition:
The engine speeds up but the vehicle speed does not increase when the accelerator pedal is stepped on at starting.
Diagnosis Hints Slipping of the clutch is suspected. Gear ratio error DTC might be set.
Transmission Fluid Checks Inspect the transmission fluid for the following conditions. If the transmission fluid is
extremely blacked, contaminated or smells burnt, slipping of clutch is suspected.
• Low quantity
• Contamination
•Smell
Line Pressure Checks Inspect the line pressure in forward ranges for a possible dropped pressure. Refer to
Line Pressure Test in Test Instruction section.
Stall Speed Checks Inspect the stall speed in forward ranges. Refer to Stall Test in Test Instruction section.
Control Valve Body Checks Inspect the valve body for the following conditions.
• Faulty operation
• Sticking spool valve
• Sticking shift solenoid valve. Perform function check. Refer to On-Vehicle Service section.
• Faulty operation of transmission fluid pressure switch. Perform function check. Refer to On-Vehicle Service section.
• Clogged hydraulic circuit
Clutch and Brake Checks Inspect any clutch for slipping.
Additional Checks • Inspect the engine for proper outputs. Refer to appropriate inspection chart in
engine section.
• Inspect the TCM grounds for being clean, tight, and in their proper locations.
• Observe the Accelerator Pedal Position (APP). APP parameter should change linearly from 0 to 99 or 100% according to the accelerator pedal operation.
Checks Action
Definition:
A large shock is felt when the selector lever is changed from N to D or N to R during idle.
Diagnosis Hints • Check the vehicle side such as exhaust mounting and engine mounting.
• With the fail-safe operation, garage shock may grow worth. If there is no DTC, faulty operation of the control valve or seized clutch might be suspected.
Transmission Range Switch &
Selector Lever Cable Checks Inspect the transmission range switch and selector lever cable for misadjusting or
disordering. Refer to On-Vehicle Service section.
Line Pressure Test Inspect the line pressure in D range or R range for a possible high or low pressure.
Refer to Line Pressure Test in Test Instruction section.
Control Valve Body Checks Inspect the valve body for the following conditions.
• Faulty operation
• Sticking spool valve
• Sticking shift solenoid valve. Perform function check. Refer to On-Vehicle Service section.
• Clogged hydraulic circuit
Clutch and Brake Checks Inspect any clutch for seizing.
Additional Checks • Inspect the transmission input signals.
• Inspect the engine for proper idle speed.
• Inspect the suspension for play.

BACK TO CHAPTER INDEX
TO MODEL INDEX
ISUZU KB P190 2007

Page 4390 of 6020

ISUZU KB P190 2007 Workshop Repair Manual 7A2-106 TRANSMISSION CONTROL SYSTEM (JR405E)
B5: Engine Stalls When Selector Lever is Changed from N to R, D, 3, 2 or L Range
B6: Engine Does Not Crank in P or N Range
B7: Engine Cranks in other t

7A2-106 TRANSMISSION CONTROL SYSTEM (JR405E)
B5: Engine Stalls When Selector Lever is Changed from N to R, D, 3, 2 or L Range
B6: Engine Does Not Crank in P or N Range
B7: Engine Cranks in other than P or N Range
B8: Extended Time Lag When Selector Lever is Changed from N to D
Checks Action
Definition:
The engine stalls when selector lever is changed from N or P position to a run position during engine idling.
Diagnosis Hints • As the correct cause is attributable to the engine, faulty idle up, insufficient
engine output, etc. are suspected.
• As this is a cause of the transmission, faulty torque converter clutch (TCC) piston is suspected.
• If the transmission fluid through resistance increases due to clogged oil cooler or some other reason, or if the transmission fluid level decreases, the TCC piston
works causing the engine stall.
Transmission Fluid Checks Inspect the transmission fluid for the following conditions. If the transmission fluid is
extremely blacked, contaminated or smells burnt, slipping of clutch is suspected.
• Low quantity
• Contamination
• Smell
Line Pressure Checks Inspect the line pressure in forward ranges for a possible dropped pressure. Refer to
Line Pressure Test in Test Instruction section.
Stall Speed Checks Inspect the stall speed in forward ranges. Refer to Stall Test in Test Instruction
section.
Control Valve Body Checks Inspect the valve body for the following conditions.
• Faulty operation
• Sticking lock up spool valve
• Sticking TCC solenoid valve. Perform function check. Refer to On-Vehicle Service section.
• Clogged hydraulic circuit
Additional Checks • Inspect the engine for proper outputs. Refer to appropriate inspection chart in
engine section.
• Inspect the engine for proper idle speed.
Checks Action
Definition: • The engine starter does not run even though the P or N range.
• The engine starter runs even though the R, D, 3, 2 or L range.
Transmission Range Switch & Selector
Lever Cable Checks Inspect the transmission range switch and selector lever cable for misadjusting or
disordering. Refer to On-Vehicle Service section.
Checks Action
Definition:
The shift time lag is longer than the standard value when the selector lever is changed from N to D.
Transmission Fluid Checks Inspect the transmission fluid for low quantity.
Line Pressure Checks Inspect the line pressure in D range for a possible dropped pressure. Refer to Line
Pressure Test in Test Instruction section.

BACK TO CHAPTER INDEX
TO MODEL INDEX
ISUZU KB P190 2007

Page 4391 of 6020

ISUZU KB P190 2007 Workshop Repair Manual TRANSMISSION CONTROL SYSTEM (JR405E) 7A2-107
B9: Extended Time Lag When Selector Lever is Changed from N to R
B10: Brake is Applied in R Range
B11: Insufficient Starting or Shaking in D Range
Co

TRANSMISSION CONTROL SYSTEM (JR405E) 7A2-107
B9: Extended Time Lag When Selector Lever is Changed from N to R
B10: Brake is Applied in R Range
B11: Insufficient Starting or Shaking in D Range
Control Valve Body Checks Inspect the valve body for the following conditions.
• Faulty operation
• Sticking spool valve
• Clogged hydraulic circuit
Clutch and Brake Checks Inspect the low clutch and low one-way clutch for slipping.
Solenoid Valve Checks • Inspect the low clutch solenoid valve for faulty operation.
Checks Action
Definition:
The shift time lag is longer than the standard value when the selector lever is changed from N to R.
Transmission Fluid Checks Inspect the transmission fluid for low quantity.
Line Pressure Checks Inspect the line pressure in R range for a possible dropped pressure. Refer to Line
Pressure Test in Test Instruction section.
Control Valve Body Checks Inspect the valve body for the following conditions.
• Faulty operation
• Sticking spool valve
• Clogged hydraulic circuit
Clutch and Brake Checks Inspect the low & reverse brake for slipping.
Solenoid Valve Checks • Inspect the low & reverse brake solenoid valve for faulty operation.
Checks
Action
Checks Action
Definition:
Brake is applied suddenly in R range.
Diagnosis Hints Trouble in transmission main unit is suspected. The trouble in the transmission main
unit may originate from the input circuits or output circuits; these circuits should also
be checked to prevent a reoccurrence of the trouble.
Transmission Range Switch & Selector
Lever Cable Checks Inspect the transmission range switch and selector lever cable for misadjusting or
disordering. Refer to On-Vehicle Service section.
Transmission Fluid Checks Inspect the transmission fluid for low quantity.
Control Valve Body Checks Inspect the valve body for the following conditions.
• Faulty operation
• Sticking spool valve
• Clogged hydraulic circuit
Clutch and Brake Checks Inspect the low clutch, high clutch or 2-4 brake for seizing.
Additional Checks • Inspect the parking mechanism for faulty operation.
Checks Action
Definition:
Insufficient starting or shaking in D range.
Transmission Fluid Checks Inspect the transmission fluid for low quantity.
Line Pressure Checks Inspect the line pressure in D range for a possible dropped pressure. Refer to Line
Pressure Test in Test Instruction section.

BACK TO CHAPTER INDEX
TO MODEL INDEX
ISUZU KB P190 2007

Page 4392 of 6020

ISUZU KB P190 2007 Workshop Repair Manual 7A2-108 TRANSMISSION CONTROL SYSTEM (JR405E)
B12: Noise or Vibration Occurs at Starting
C1: Engine Race Up (Slipping) When Gearshift is Up from 1st to 2nd
C2: Engine Race Up (Slipping) When Gear

7A2-108 TRANSMISSION CONTROL SYSTEM (JR405E)
B12: Noise or Vibration Occurs at Starting
C1: Engine Race Up (Slipping) When Gearshift is Up from 1st to 2nd
C2: Engine Race Up (Slipping) When Gearshift is Up from 2nd to 3rd
C3: Engine Race Up (Slipping) When Gearshift is Up from 3rd to 4th
C4: Engine Race Up (Slipping) When Gearshift is Down from 4th to 3rd
C5: Engine Race Up (Slipping) When Gearshift is Down (or Kick-down) from 4th to 2nd
C6: Engine Race Up (Slipping) When Gearshift is Down (or Kick-down) from 3rd to 2nd
C7: Engine Race Up (Slipping) When Gearshift is Down (or Kick-down) from 4th or 3rd to 2nd
C8: Engine Race Up (Slipping) Others
Control Valve Body Checks Inspect the valve body for the following conditions.
• Faulty operation
• Sticking spool valve
• Clogged hydraulic circuit
Clutch and Brake Checks Inspect the low clutch, reverse clutch, low one-way clutch or low & reverse brake for
slipping.
Checks
Action
ChecksAction
Definition:
Noise or vibration occurs in the vicinity of the transmission at starting.
Diagnosis Hints Cause other than transmission is suspected. Reproduce the running condition using
a lift up, chassis dynamo, etc. to investigate the origin of the noise and vibration.
Additional Checks • Inspect the differential gear noise.
• Inspect the propeller shaft noise.
• Inspect the tires for unbalanced or poor uniformity.
Checks Action
Definition: • Engine speed-up occurs when the accelerator pedal is stepped on for acceleration, and the gear is shifted up.
• Engine speed-up occurs when the accelerator pedal is stepped on for acceleration, and the gear is shifted down or for kick-down during steady run.
• Engine speed-up occurs when the accelerator pedal is stepped on for acceleration, and the gear is shifted down or for kick-down during steady run.
Diagnosis Hints Slipping of the clutch is suspected. Gear ratio error DTC might be set.
Transmission Fluid Checks Inspect the transmission fluid for the following conditions. If the transmission fluid is
extremely blacked, contaminated or smells burnt, slipping of clutch is suspected.
• Low quantity
• Contamination
•Smell
Line Pressure Checks Inspect the line pressure in forward ranges for a possible dropped pressure. Refer
to Line Pressure Test in Test Instruction section.
Stall Speed Checks Inspect the stall speed in forward ranges. Refer to Stall Test in Test Instruction
section.

BACK TO CHAPTER INDEX
TO MODEL INDEX
ISUZU KB P190 2007

Load next 8 pages

Page: < prev 1-10 ... 4353-4360 4361-4368 4369-4376 4377-4384 4385-4392 4393-4400 4401-4408 4409-4416 4417-4424 ... 6024 next >

engine adblue length catalytic converter reset fuel filter