2007 ISUZU KB P190 service

TRANSMISSION CONTROL SYSTEM (AW30–40LE) 7A2-55

DTC P0717 (Flash Code 14)



RTW 77AMF000601

Circuit Description
Input revolution information is provided to TCM by the
input revolution sensor. This sensor is located in the
transmission case.
The input revolution sensor is an electromagnetic pulse
pickup type that generates a speed signal according to
the revolution of the transmission OD direct clutch
drum. As a result, the sensor sends a sine wave signal
(AC) to the TCM, which converts this sine wave signal
(pulse voltage) to a RPM signal.
Condition For Running The DTC
All of the following conditions are met.
(1)
All of the following conditions are met for 2
seconds or more continuously.
• The supply voltage is more than 10.2 volts and
less than 15.5 volts.
• DTC U2104 is not detecting failure or not
deciding failure.
• DTC U2105 is not detecting failure or not
deciding failure.

• Engine revolution sensor is not detecting failure
or not deciding failure.
• The engine revolution is more than 550rpm.
(2) Not emergency mode.
(3) All of the following conditions are met. • Device Control is not operating.
• Disable Normal Communication Service is
receiving enable.
• DTC Clear is not operating.
Condition For Setting The DTC
All of the following conditions are met.
(1) 25 seconds or more passed after changing to the except P/R/N from P/R/N.
If the following condition is met when 25 seconds
or more passed after changing, it is considered
that 25 seconds or more passed.
• The oil temperature sensor is not detecting
failure or not deciding failure, and also oil
temperature is more than 20 °C (68 °F).


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ISUZU KB P190 2007

TRANSMISSION CONTROL SYSTEM (AW30–40LE) 7A2-59

DTC P0722 (Flash Code 11)




RTW 77AMF000701

Circuit Description
Vehicle speed information is provided to the TCM by the
output revolution sensor. This sensor is located in the
transmission adapter or extension housing.
The output revolution sensor is an electromagnetic
pulse pickup type that generates a speed signal
according to the revolution of the transmission output
shaft. As a result, the sensor sends a sine wave signal
(AC) to the TCM, which converts this sine wave signal
(pulse voltage) to a RPM signal.
Condition For Running The DTC
All of the following conditions are met.
(1)
All of the following conditions are met for 2
seconds ore more continuously.
• The supply voltage is more than 10.2 volts and less than 15.5 volts.
• DTC U2104 is not detecting failure or not deciding failure.
• DTC U2105 is not detecting failure or not deciding failure

• Engine revolution sensor is not detecting failure
or not deciding failure.
• The engine revolution is more than 550rpm.
(2) Not emergency mode.
(3) All of the following conditions are met. • Device Control is not operating.
• Disable Normal Communication Service is receiving enable.
• DTC Clear is not operating.
Condition For Setting The DTC
All of the following conditions are met.
(1) 25 seconds or more passed after changing to the except P/R/N from P/R/N.
If the following condition is met when 25 seconds
or more passed after changing, it is considered
that 25 seconds or more passed.
• Oil temperature sensor is not detecting failure o
r
not deciding failure, and also oil temperature is
more than 20 °C (68 °F).


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ISUZU KB P190 2007

7A2-64 TRANSMISSION CONTROL SYSTEM (AW30–40LE)

(2) Oil temperature is more than 20 °C (68 °F), and
water temperature signal is more than 70 °C
(158 °F).
(3) 20 seconds or more passed after D position is detected.
(4) Oil temperature sensor is not deciding failure.
(5) Engine coolant temperature sensor is not detecting failure or not deciding failure.
(6) The engine revolution is more than 600 rpm.
(7) Engine revolution sensor is not detecting failure o
r
not deciding failure.
(8) T/F condition is high.
(9) T/F Hi-Low SW is not detecting failure or not deciding failure.
(10) Output revolution sensor is not detecting failure o
r
not deciding failure.
(11) S1 solenoid is not detecting failure or not deciding
failure. (Electronic failure)
(12) S2 solenoid is not detecting failure or not deciding
failure. (Electronic failure)
(13) L-up solenoid is not detecting failure or not
deciding failure. (Electronic failure)
(14) Selector position switch is not detecting failure o
r
not deciding failure.
(15) DTC U2104 is not detecting failure or not deciding
failure.
(16) DTC U2105 is not detecting failure or not deciding
failure.
(17) Input revolution sensor is not deciding failure.
(18) Throttle signal is not detecting failure or not
deciding failure.
(19) Not emergency mode.
(20)Engine torque signal is not detecting failure or not deciding failure.
(21) Pressure control solenoid is not detecting failure
not deciding failure.
(22) All of the following conditions are met.
• Device Control is not operating.
• Disable Normal Communication Service is receiving enable.
• DTC Clear is not operating.
Condition For Setting The DTC
The TCM detects following conditions are met for 4
seconds continuously.
• 2 seconds passed after gear change output and L-up “ON”/”OFF” output.
• T/C revolution difference more than 150 rpm for 4.5 seconds continuously.
• 4th gear lock-up “ON”.
• The throttle position is more than 20% and less than 100%.
• The vehicle speed is more than 5 km/h (3 mph) and less than 100 km/h (62 mph).
Action Taken When The DTC Sets
• Check Trans “ON”.
• DTC stored.
• MIL request “ON” (EURO 4 only).
Conditions For Clearing The DTC
• The DTC can be cleared from the TCM history by
using a scan tool.
• The DTC will be cleared from history when the vehicle has achieved 40 warm-up cycles without a
failure reported.
• After more than 1 second has elapsed after the ignition key has been turned “ON”, short between
No.11 and No.4 (ground) of DLC (Data Link
Connector). Then, after 1 second, but within 6
seconds, discontinue shorting.
Diagnostic Aids
• Inspect the wiring for poor electrical connection at the TCM. Look for possible bent, backed out, deformed
or damaged terminals. Check for weak terminal
tension as well. Also check for a chafed wire that
could short to bare metal or other wiring. Inspect for a
broken wire inside the insulation.
• W hen diagnosing for a possible intermittent short o
r
open condition, move the wiring harness while
observing test equipment for a change.


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ISUZU KB P190 2007

7A2-68 TRANSMISSION CONTROL SYSTEM (AW30–40LE)

(2) Oil temperature is more than 20 °C (68 °F), and
water temperature signal is more than 70 °C
(158 °F).
(3) 20 seconds or more passed after D position is detected.
(4) Oil temperature sensor is not deciding failure.
(5) Engine coolant temperature sensor is not detecting failure or not deciding failure.
(6) The engine revolution is more than 600 rpm.
(7) Engine revolution sensor is not detecting failure o
r
not deciding failure.
(8) T/F condition is high.
(9) T/F Hi-Low SW is not detecting failure or not deciding failure.
(10) Output revolution sensor is not detecting failure o
r
not deciding failure.
(11) S1 solenoid is not detecting failure or not deciding
failure. (Electronic failure)
(12) S2 solenoid is not detecting failure or not deciding
failure. (Electronic failure)
(13) L-up solenoid is not detecting failure or not
deciding failure. (Electronic failure)
(14) Selector position switch is not detecting failure o
r
not deciding failure.
(15) DTC U2104 is not detecting failure or not deciding
failure.
(16) DTC U2105 is not detecting failure or not deciding
failure.
(17) Input revolution sensor is not deciding failure.
(18) Throttle signal is not detecting failure or not
deciding failure.
(19) Not emergency mode.
(20) Engine torque signal is not detecting failure or not
deciding failure.
(21) Pressure control solenoid is not detecting failure
not deciding failure.
(22) All of the following conditions are met.
• Device Control is not operating.
• Disable Normal Communication Service is receiving enable.
• DTC Clear is not operating.
Condition For Setting The DTC
The following conditions are detected two times or more
between ignition “ON” and ignition “OFF”.
The TCM detects following conditions are met for 1
second continuously.
• 2 second passed after gear change output and L-up “ON”/”OFF” output.
• T/C revolution difference more than 100 rpm for 1 second continuously.
• 3rd gear lock-up “OFF”.
Action Taken When The DTC Sets
• No squat control. (For preventing engine stall)
• Fix 1st gear to prevent engine stall when vehicle speed is and below 10 km/h (6 mph). (Cancel at 15
km/h {9 mph})
• Check Trans “ON”.
• DTC stored.
• MIL request “ON”. (EURO 4 only)
Conditions For Clearing The DTC
• The DTC can be cleared from the TCM history by
using a scan tool.
• The DTC will be cleared from history when the vehicle has achieved 40 warm-up cycles without a
failure reported.
•
After more than 1 second has elapsed after the
ignition key has been turned “ON”, short between
No.11 and No.4 (ground) of DLC (Data Link
Connector). Then, after 1 second, but within 6
seconds, discontinue shorting.
Diagnostic Aids
• Inspect the wiring for poor electrical connection at the TCM. Look for possible bent, backed out, deformed
or damaged terminals. Check for weak terminal
tension as well. Also check for a chafed wire that
could short to bare metal or other wiring.
Inspect for a broken wire inside the insulation.
• W hen diagnosing for a possible intermittent short o
r
open condition, move the wiring harness while
observing test equipment for a change.

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ISUZU KB P190 2007

TRANSMISSION CONTROL SYSTEM (AW30–40LE) 7A2-71

DTC P0746 (Flash Code 45)






RTW 77ALF001501

Circuit Description
The pressure control solenoid is a PW M duty control
solenoid located in the valve body.
The pressure control solenoid is a Transmission
Control Module (TCM)-controlled device used to
regulate transmission throttle pressure by energizing
current from the TCM.
Condition For Running The DTC
All of the following conditions are met.
(1)
All of the following conditions are met for 2
seconds or more.

• The supply voltage is more than 10.2 volts and
less than 15.5 volts.
(2) Not emergency mode.
(3) All of the following conditions are met. • Device Control is not operating.
• Disable Normal Communication Service is
receiving enable.
• DTC Clear is not operating.
(4) Pressure control solenoid is not detecting failure o
r
not deciding failure.
(5) Feedback AD value keeps less than 1000 for 0.5 seconds and also linear solenoid assured voltage
keeps 10.5 volts for 0.5 seconds.


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ISUZU KB P190 2007

TRANSMISSION CONTROL SYSTEM (AW30–40LE) 7A2-75

(5) Engine coolant temperature sensor is not detecting failure or not deciding failure.
(6) Engine revolution rpm is more than 600 rpm.
(7) Engine revolution sensor is not detecting failure o
r
not deciding failure.
(8) T/F condition is high.
(9) T/F Hi-Low SW is not detecting failure or not deciding failure.
(10) Output revolution sensor is not detecting failure o
r
not deciding failure.
(11) S1 solenoid is not detecting failure or not deciding
failure. (Electric failure)
(12) S2 solenoid is not detecting failure or not deciding
failure. (Electric failure)
(13) Selector position switch is not detecting failure o
r
not deciding failure.
(14) DTC U2104 is not detecting failure or not deciding
failure.
(15) DTC U2105 is not detecting failure or not deciding
failure.
(16) Input revolution sensor is not deciding.
(17) Throttle signal is not detecting failure or not
deciding failure.
(18) Not emergency mode.
(19) Engine torque signal is not detecting failure or not
deciding failure.
(20) Pressure control solenoid is not detecting failure o
r
not deciding failure.
(21) All of the following conditions are met.
• Device Control is not operating.
• Disable Normal Communication Service is receiving enable.
• DTC Clear is not operating.
Condition For Setting The DTC
The following conditions are detected two times or more
between ignition “ON” and ignition “OFF”.
2 second passed after gear change output.
• The TCM detects equivalent of 4th gear ratio for 1 second in case of 1st gear output.
- The throttle position is more than 8% and less than 100%.
- The vehicle speed is more than 7 km/h (4 mph).

• The TCM detects equivalent of 3rd gear ratio for 1
second in case of 2nd gear output.
- The throttle position is more than 8% and less than 100%.
- The vehicle speed is more than 5 km/h (3 mph) and less than 30 km/h (19 mph).
Action Taken When The DTC Sets
• No input revolution sensor failure detection.
• MIL request “ON”. (EURO 4 only)
• Check Trans “ON”.
• DTC stored.
Conditions For Clearing The DTC
• The DTC can be cleared from the TCM history by
using a scan tool.
• The DTC will be cleared from history when the vehicle has achieved 40 warm-up cycles without a
failure reported.
•
After more than 1 second has elapsed after the
ignition key has been turned “ON”, short between
No.11 and No.4 (ground) of DLC (Data Link
Connector). Then, after 1 second, but within 6
seconds, discontinue shorting.
Diagnostic Aids
• Inspect the wiring for poor electrical connection at the TCM. Look for possible bent, backed out, deformed
or damaged terminals. Check for weak terminal
tension as well. Also check for a chafed wire that
could short to bare metal or other wiring.
Inspect for a broken wire inside the insulation.
• W hen diagnosing for a possible intermittent short o
r
open condition, move the wiring harness while
observing test equipment for a change.


BACK TO CHAPTER INDEX
TO MODEL INDEX
ISUZU KB P190 2007

TRANSMISSION CONTROL SYSTEM (AW30–40LE) 7A2-79

(5) Engine coolant temperature sensor is not detecting failure or not deciding failure.
(6) Engine revolution rpm is more than 600 rpm.
(7) Engine revolution sensor is not detecting failure o
r
not deciding failure.
(8) T/F condition is high.
(9) T/F Hi-Low SW is not detecting failure or not deciding failure.
(10) Output revolution sensor is not detecting failure o
r
not deciding failure.
(11) S1 solenoid is not detecting failure or not deciding
failure. (Electric failure)
(12) S2 solenoid is not detecting failure or not deciding
failure. (Electric failure)
(13) Selector position switch is not detecting failure o
r
not deciding failure.
(14) DTC U2104 is not detecting failure or not deciding
failure.
(15) DTC U2105 is not detecting failure or not deciding
failure.
(16) Input revolution sensor is not deciding.
(17) Throttle signal is not detecting failure or not
deciding failure.
(18) Not emergency mode.
(19) Engine torque signal is not detecting failure or not
deciding failure.
(20) Pressure control solenoid is not detecting failure o
r
not deciding failure.
(21) All of the following conditions are met.
• Device Control is not operating.
• Disable Normal Communication Service is receiving enable.
• DTC Clear is not operating.
Condition For Setting The DTC
The following conditions are detected two times or more
between ignition “ON” and ignition “OFF”.
2 second passed after gear change output.
• The TCM detects equivalent of 2nd gear ratio for 1 second in case of 3rd gear output.
- The throttle position is more than 8% and less than 100%.
- The vehicle speed is more than 5 km/h (3 mph).
Action Taken When The DTC Sets
• No use 4th gear.
• No input revolution Sensor failure detection.
• MIL request “ON”. (EURO 4 only)
• Check Trans “ON”.
• DTC stored.
Conditions For Clearing The DTC
• The DTC can be cleared from the TCM history by
using a scan tool.
• The DTC will be cleared from history when the vehicle has achieved 40 warm-up cycles without a
failure reported.
•
After more than 1 second has elapsed after the
ignition key has been turned “ON”, short between
No.11 and No.4 (ground) of DLC (Data Link
Connector). Then, after 1 second, but within 6
seconds, discontinue shorting.
Diagnostic Aids
• Inspect the wiring for poor electrical connection at the TCM. Look for possible bent, backed out, deformed
or damaged terminals. Check for weak terminal
tension as well. Also check for a chafed wire that
could short to bare metal or other wiring. Inspect for a
broken wire inside the insulation.
• W hen diagnosing for a possible intermittent short o
r
open condition, move the wiring harness while
observing test equipment for a change.

BACK TO CHAPTER INDEX
TO MODEL INDEX
ISUZU KB P190 2007

TRANSMISSION CONTROL SYSTEM (AW30–40LE) 7A2-83

(5) Engine coolant temperature sensor is not detecting failure or not deciding failure.
(6) Engine revolution rpm is more than 600 rpm.
(7) Engine revolution sensor is not detecting failure o
r
not deciding failure.
(8) T/F condition is high.
(9) T/F Hi-Low SW is not detecting failure or not deciding failure.
(10) Output revolution sensor is not detecting failure o
r
not deciding failure.
(11) S1 solenoid is not detecting failure or not deciding
failure. (Electric failure)
(12) S2 solenoid is not detecting failure or not deciding
failure. (Electric failure)
(13) Selector position switch is not detecting failure o
r
not deciding failure.
(14) DTC U2104 is not detecting failure or not deciding
failure.
(15) DTC U2105 is not detecting failure or not deciding
failure.
(16) Input revolution sensor is not deciding.
(17) Throttle signal is not detecting failure or not
deciding failure.
(18) Not emergency mode.
(19) Engine torque signal is not detecting failure or not
deciding failure.
(20) Pressure control solenoid is not detecting failure o
r
not deciding failure.
(21) All of the following conditions are met.
• Device Control is not operating.
• Disable Normal Communication Service is receiving enable.
• DTC Clear is not operating.
Condition For Setting The DTC
The following conditions are detected two times or more
between ignition “ON” and ignition “OFF”.
2 second passed after gear change output.
• The TCM detects equivalent of 1st gear ratio for 1 second in case of 2nd gear output.
- The throttle position is more than 8% and less than 100%.
- The vehicle speed is more than 5 km/h (3 mph).

• The TCM detects equivalent of 4th gear ratio for 1
second in case of 3rd gear output.
- The throttle position is more than 8% and less than 100%.
- The vehicle speed is more than 20 km/h (12 mph).
Action Taken When The DTC Sets
• No input revolution Sensor failure detection.
• MIL request “ON”. (EURO 4 only)
• Check Trans “ON”.
• DTC stored.
Conditions For Clearing The DTC
• The DTC can be cleared from the TCM history by
using a scan tool.
• The DTC will be cleared from history when the vehicle has achieved 40 warm-up cycles without a
failure reported.
•
After more than 1 second has elapsed after the
ignition key has been turned “ON”, short between
No.11 and No.4 (ground) of DLC (Data Link
Connector). Then, after 1 second, but within 6
seconds, discontinue shorting.
Diagnostic Aids
• Inspect the wiring for poor electrical connection at the TCM. Look for possible bent, backed out, deformed
or damaged terminals. Check for weak terminal
tension as well. Also check for a chafed wire that
could short to bare metal or other wiring.
Inspect for a broken wire inside the insulation.
• W hen diagnosing for a possible intermittent short o
r
open condition, move the wiring harness while
observing test equipment for a change.


BACK TO CHAPTER INDEX
TO MODEL INDEX
ISUZU KB P190 2007