Circuit ISUZU KB P190 2007 Workshop Repair Manual

ISUZU KB P190 2007 Workshop Repair Manual KB P190 2007 ISUZU ISUZU https://www.carmanualsonline.info/img/61/57177/w960_57177-0.png ISUZU KB P190 2007 Workshop Repair Manual

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ISUZU KB P190 2007  Workshop Repair Manual ENGINE CONTROL SYSTEM (4JK1/4JJ1)   6E-263
DTC P2122 or P2123 (Flash Code 121)
Circuit Description 
The accelerator pedal position (APP) sensor is 
mounted on the accelerator pedal control assembly.
T

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ISUZU KB P190 2007  Workshop Repair Manual 6E-264   ENGINE CONTROL SYSTEM (4JK1/4JJ1)
41. Turn OFF the ignition. 
2. Disconnect the APP sensor harness connector.
3. Connect a DMM between the 5 volts reference circuit (pin 10 of C-40) and a kno

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ISUZU KB P190 2007  Workshop Repair Manual ENGINE CONTROL SYSTEM (4JK1/4JJ1)   6E-265
Circuit/ System Testing DTC P2123
121. Reconnect all previously disconnected
harness connector(s).
2. Clear the DTCs with a scan tool. 
3. Turn OFF the ignit

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ISUZU KB P190 2007  Workshop Repair Manual 6E-266   ENGINE CONTROL SYSTEM (4JK1/4JJ1)
7Important:
 The APP sensor 1 may be damaged if
the sensor signal circuit is shorted to a voltage 
source. 
1. Test the signal circuit between the ECM (pin 1

Page 1884 of 6020

ISUZU KB P190 2007  Workshop Repair Manual ENGINE CONTROL SYSTEM (4JK1/4JJ1)   6E-267
DTC P2127 or P2128 (Flash Code 122)
Circuit Description 
The accelerator pedal position (APP) sensor is 
mounted on the accelerator pedal control assembly.
T

Page 1885 of 6020

ISUZU KB P190 2007  Workshop Repair Manual 6E-268   ENGINE CONTROL SYSTEM (4JK1/4JJ1)
5Connect a DMM between the 5 volts reference 
circuit (pin 8 of C-40) and a known good ground. 
Is the DMM voltage more than the specified value? 4.7 volts
G

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ISUZU KB P190 2007  Workshop Repair Manual ENGINE CONTROL SYSTEM (4JK1/4JJ1)   6E-269
Circuit/ System Testing DTC P2128
StepAction Value(s)Yes No
1 Did you perform the Diagnostic System Check - 
Engine Controls? —
Go to Step 2 Go to Diagnost

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ISUZU KB P190 2007  Workshop Repair Manual 6E-270   ENGINE CONTROL SYSTEM (4JK1/4JJ1)
10Important: 
The APP sensor 2 may be damaged if
the sensor signal circuit is shorted to a voltage 
source. 
1. Test the signal circuit between the ECM (pin

Page 1888 of 6020

ISUZU KB P190 2007  Workshop Repair Manual ENGINE CONTROL SYSTEM (4JK1/4JJ1)   6E-271
DTC P2132 or P2133 (Flash Code 123)
Circuit Description 
The accelerator pedal position (APP) sensor is 
mounted on the accelerator pedal control assembly.
T

Page 1889 of 6020

ISUZU KB P190 2007  Workshop Repair Manual 6E-272   ENGINE CONTROL SYSTEM (4JK1/4JJ1)
41. Turn OFF the ignition. 
2. Disconnect the APP sensor harness connector.
3. Turn ON the ignition, with the engine OFF. 
Is the APP Sensor 3 parameter more