2007 ISUZU KB P190 Workshop Repair Manual

driver seat adjustment fuse box ad blue interior lights wheel bolt torque oil capacities

Load previous 8 pages

Page 4065 of 6020

ISUZU KB P190 2007 Workshop Repair Manual TRANSMISSION CONTROL SYSTEM (AW30–40LE) 7A2-99

Step Action Value(s) YES NO
4 1. Turn “OFF” the ignition.
2. Disconnect the TCM connector (C-94).
3. Turn “ON” the ignition.
4

Page 4066 of 6020

ISUZU KB P190 2007 Workshop Repair Manual 7A2-100 TRANSMISSION CONTROL SYSTEM (AW30–40LE)

Step Action Value(s) YES NO
11 1. Reconnect all previously disconnected harness
connector(s).
2. Clear the DTCs with a scan tool.
3. Tu

Page 4067 of 6020

ISUZU KB P190 2007 Workshop Repair Manual TRANSMISSION CONTROL SYSTEM (AW30–40LE) 7A2-101

DTC P1790 (Flash Code 61)
Description
The electrically erasable programable read only
memory (EEPROM) is a permanent memory chip that is
physic

Page 4068 of 6020

ISUZU KB P190 2007 Workshop Repair Manual 7A2-102 TRANSMISSION CONTROL SYSTEM (AW30–40LE)

Circuit/System Testing DTC P1790

Step Action Value(s) YES NO
1
W as the On-Board Diagnostic (OBD) System Check
performed? — Go to
S

Page 4069 of 6020

ISUZU KB P190 2007 Workshop Repair Manual TRANSMISSION CONTROL SYSTEM (AW30–40LE) 7A2-103

DTC P1791 (Flash Code 62)
Description
DTC P1791 is recorded by TCM when there is
malfunction in the RAM.
Condition For Running The DTC
Execut

Page 4070 of 6020

ISUZU KB P190 2007 Workshop Repair Manual 7A2-104 TRANSMISSION CONTROL SYSTEM (AW30–40LE)

Circuit/System Testing DTC P1791

Step Action Value(s) YES NO
1
W as the On-Board Diagnostic (OBD) System Check
performed? — Go to
S

Page 4071 of 6020

ISUZU KB P190 2007 Workshop Repair Manual TRANSMISSION CONTROL SYSTEM (AW30–40LE) 7A2-105

DTC P2769 or P2770 (Flash Code 33)

RTW 77ALF001501

Circuit Description
The lock-up solenoid SL of the torque converter clutch
(TCC

Page 4072 of 6020

ISUZU KB P190 2007 Workshop Repair Manual 7A2-106 TRANSMISSION CONTROL SYSTEM (AW30–40LE)

(4) All of the following conditions are met.
• Device Control is not operating.
• Disable Normal Communication is receiving enable.
•

7A2-106 TRANSMISSION CONTROL SYSTEM (AW30–40LE)

(4) All of the following conditions are met.
• Device Control is not operating.
• Disable Normal Communication is receiving enable.
• DTC Clear is not operating.
Condition For Setting The DTC
The TCM detects following conditions for 0.5 seconds
continuously at shifting.
• Voltage at connector pin is 0V when solenoid is “ON”.
(DTC P2769)
• Voltage at connector pin is ignition voltage when
solenoid is “OFF”. (DTC P2770)
Action Taken When The DTC Sets
• No L-up solenoid functional failure detection.
• No squat control. (DTC P2770)
• The TCM fixes to 1st gear when the vehicle speed is less than 10 km/h (6 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.5 (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.
Circuit/System Testing DTC P2769 or P2770

Step Action Value(s) YES NO
1
W as the On-Board Diagnostic (OBD) System Check
performed? — Go to
Step 2 Go to OBD
System Check
2 1. Install a scan tool.
2. Start the engine.
3. Drive the vehicle in D position.
4. Accelerate the vehicle until the gear position
becomes the 4th.
5. Release the accelerator pedal and accelerate the vehicle until the gear position becomes the 4th
again.

Does a scan tool indicate DTC P2769 or P2770? — Go to
Step 3 Refer to
Diagnostic Aids

BACK TO CHAPTER INDEX
TO MODEL INDEX
ISUZU KB P190 2007

Load next 8 pages

Page: < prev 1-10 ... 4033-4040 4041-4048 4049-4056 4057-4064 4065-4072 4073-4080 4081-4088 4089-4096 4097-4104 ... 6024 next >

spark plugs seats fuses child restraint alternator fuel pump