COMMON RAIL SYSTEM
V3800-CR-TE4,V3800-CR-TIE4, DM
1-S164
2. Measure the ECU Terminal Voltage
1. Move the key switch from the OFF to the ON position, and
measure the voltage between ECU terminals A-40 and A-24
and between terminals A-41 and A-16.
2. Next, start the engine, change the depressed amount of the
accelerator pedal, and check the same items again.
9Y1200192CRS0698US0
3. Measure the Voltage Between Rail Pressure Sensor
Terminals - 1
1. Place the key switch in the ON position, and measure the
voltage between terminals (2) and (3) of the rail pressure sensor
at the wiring harness side.
2. Next, start the engine, change the depressed amount of the
accelerator pedal, and check the same items again.
9Y1200192CRS0699US0
Factory
specification
Depends on the rotation speed, load (After warm-up)
1. When stopped: Approx. 1.0 V
2. When idling: 1.65 to 1.80 V
3. During no-load maximum speed: 2.50 to 2.85 V
4. During acceleration: 2.5 to 3.3 V
OK
Check the harness connectors and ECU pins.
OK
Faulty ECU
→
Replace.
NG
Repair or replace the wiring harness, or replace the ECU.
NG
Go to "3. Measure the voltage between rail pressure sensor terminals -
1".
Factory
specification
Depends on the rotation speed, load (After warm-up)
1. When stopped: Approx. 1.0 V
2. When idling: 1.65 to 1.80 V
3. During no-load maximum speed: 2.50 to 2.85 V
4. During acceleration: 2.5 to 3.3 V
OK
Check the wiring harness (between ECU terminals A-40 / A-41 and
sensor terminal (2)).
→
Repair the faulty area.
NG
Go to "4. Measure the voltage between rail pressure sensor terminals -
2".
(1) Terminal A-VCC1
(2) Terminal PFUEL
(3) Terminal A-GND6
(a) Terminal Layout
KiSC issued 05, 2012 A
