FAILURE DIAGNOSIS
1-14
TNV DI Service Manual
DTCs (Diagnostic Trouble Codes) General Description
(2) P0123/3: Accelerator Sensor Error (High Voltage)
DTC Detecting Conditions
Movement at Error occurrence
Estimation of Failure cause/Error condition
• The connector may not be properly connected.
• Wiring defect of the harness
•
The SENSOR GND wire may be disconnected.
•
The sensor signal wire may be short-circuited with POWER SUPPLY.
• The accelerator sensor may be faulty.
•
Sensor output defect by a short circuit with power supply of the accelerator sensor inner wiring
• The E-ECU internal circuitry may be faulty.
DTC
P0123/3
Accelerator Sensor Error (High Voltage)
1 - Precondition; 2 - Detecting condition(s);
3 - Flashing pattern of failure indicator
Check points
1. Key switch ON.
2. Sensor voltage 4.6 [V] or higher.
3. Five flashes.
Harness
Accelerator sensor
Spare Accelerator Sensor Function
Unavailable
Available
Error Mode
[Run Under Restrictions]:
The engine runs at a constant rotational
speed.
[Stop Immediately]:
The engine continues to run using the
spare accelerator sensor instead.
Run restricted?
Yes: The target speed is set to the "on-
error target speed (standard value:
1500[min
-1
])" or “pre-error target
speed”.
No.
Recovery
Conditions
Yes: This error will be automatically reset
when a normal voltage (0.2 to
4.6[V]) is input.
Yes: This error will be automatically reset
when a normal voltage (0.2 to
4.6[V]) is input.
Remarks
TNV_DI_SM_A4-Troubleshooting.book 14 ページ ２００７年１１月１５日 木曜日 午後５時２７分
