ENGINE CONTROL SYSTEM (J08E)
4–979
INSPECTION PROCEDURE: P2120
1.
Connect the vehicle to Hino-DX.
2.
Set the starter switch to the "ON" position.
3.
Select [Engine] and check if P2120 (for example, P2122, P2123,
P2127, P2128) has been detected in [Fault Information].
NO
YES
1.
Set the starter switch to the "LOCK" position.
2.
Replace a new accelerator sensor.
3.
Set the starter switch to the "ON" position.
4.
Select [Engine] and check if P2120 has been detected in [Fault
Information].
NO
YES
1
Check the DTC detected (Engine ECU) 1 [Hino-DX]
Select
Engine
SAPH16F010300756
Has a DTC other than P2120 been detected?
Go to the diagnostic procedure of a related
DTC.
Go to step 2.
2
Check the DTC detected (Engine ECU) 2 [Hino-DX]
Select
Engine
SAPH16F010300757
Has DTC P2120 been detected?
Restore the accelerator sensor to its original
condition and then go to step 3.
Procedure completed.
Perform "After-inspection work" of INFOR-
MATION section.
Summary of Contents for 238
Page 201: ...ENGINE CONTROL SYSTEM J08E 4 978 Harness disconnection or short circuit ...
Page 215: ...ENGINE CONTROL SYSTEM J08E 4 992 Malfunction of sensor 2 Malfunction of engine ECU ...
Page 301: ...ENGINE CONTROL SYSTEM J08E 4 1078 8 Estimated failure factors Malfunction of engine ECU ...
Page 709: ...DEF SCR SYSTEM DCU 5 143 8 Estimated failure factors DEF pump pressure sensor malfunction ...
