FAILURE DIAGNOSIS
1-32
TNV DI Service Manual
DTCs (Diagnostic Trouble Codes) General Description
(6) P1227/8: Failure with Spare Accelerator Sensor (Pulse Communication)
* This DTC is output when a pulse accelerator is used.
DTC Detecting Conditions
Movement at Error occurrence
Estimation of Failure cause/Error condition
• Wiring defect of the harness
•
The pulse accelerator's signal wires may be disconnected or short-circuited with GND.
• Source circuitry fault of the pulse accelerator signal
• The E-ECU internal circuitry may be faulty.
DTC
P1227/8
Failure with Spare Accelerator Sensor (Pulse
Communication)
1 - Precondition; 2 - Detecting condition(s);
3 - Flashing pattern of failure indicator
Check points
1. Key switch ON.
2. No pulse accelerator signal input
3. One flash followed by eight flashes
Harness
CAN communication error detection
Unavailable
Available
Error Mode
[Run As Is]:
After detecting the error, the system lets
the engine continue to run without any
restrictions.
[Run Under Restrictions]:
The engine runs at a constant rotational
speed.
Run restricted?
No.
Yes: The target speed is set to the "on-
error target speed (standard value:
1500[min
-1
])" or “pre-error target
speed”.
Recovery
Conditions
Yes: The error is automatically reset
when a normal data is received.
Yes: The error is automatically reset
when a normal data is received.
Remarks
TNV_DI_SM_A4-Troubleshooting.book 32 ページ ２００７年１１月１５日 木曜日 午後５時２７分
