|
- Refer to Data List Reference Table
.
- Item 63: Rail pressure sensor
|
|
Q.
Is the check result normal?
|
|
Intermittent malfunction (Refer to
GROUP 00 - How to Use Troubleshooting/Inspection Service Points
- How to Cope with Intermittent Malfunctions ).
|
|
|
|
Q.
Is the check result normal?
|
|
Repair
or replace the connector.
|
|
|
|
- Use special tool test harness (MB991658) to connect connector, and
measure at pick-up harness.
- Ignition switch: ON
- Voltage between terminal No. 1 and earth.
|
|
Q.
Is the check result normal?
|
|
- Check power supply line for open/short circuit.
- Ignition switch: ON
- Voltage between terminal No. 81 and earth.
|
|
Q.
Is the check result normal?
|
|
Q.
Is the check result normal?
|
|
Repair
or replace the connector.
|
|
|
|
- Check power supply line for short circuit.
|
|
Q.
Is the check result normal?
|
|
Repair
the damaged harness wire.
|
|
|
|
- Refer to Data List Reference Table
.
- Item 63: Rail pressure sensor
|
|
Q.
Is the check result normal?
|
|
Intermittent malfunction (Refer to
GROUP 00 - How to Use Troubleshooting/Inspection Service Points
- How to Cope with Intermittent Malfunctions ).
|
|
|
|
Replace the engine-ECU. When the
engine-ECU is replaced, write the chassis number (Refer to GROUP 00 -
Precautions Before Service - How to Perform Chassis Number Writing ). After replacing the
engine-ECU, register the injector identification code and learn fuel
injection (Refer to GROUP 00 - Precautions Before Service -
What The Common Rail Engine Learns ).
|
|
|
|
Q.
Is the check result normal?
|
|
![](../../../buttons/03btn001.png)
Check intermediate
connector B-127, and repair if necessary. If intermediate connector is
normal, check and repair harness between B-124 (terminal No. 1) rail
pressure sensor connector and D-213 (terminal No. 81) engine-ECU
connector.
- Check power supply line for open circuit and
damage.
|
|
|
|
Repair
or replace the connector.
|
|
|
|
- Disconnect and measure at harness side.
- Ignition switch: ON
- Resistance between terminal No. 3 and earth.
|
|
OK: Continuity (2 Ω or
less)
|
|
Q.
Is the check result normal?
|
|
Q.
Is the check result normal?
|
|
Repair
or replace the connector.
|
|
|
|
- Check earthing line for damage.
|
|
Q.
Is the check result normal?
|
|
Repair
the damaged harness wire.
|
|
|
|
- Use special tool test harness (MB991658) to connect connector, and
measure at pick-up harness.
- Engine: Idling (after warming up)
- Voltage between terminal No. 2 and earth.
|
|
Q.
Is the check result normal?
|
|
Q.
Is the check result normal?
|
|
Repair
or replace the connector.
|
|
|
|
- Check output line for short circuit.
|
|
Q.
Is the check result normal?
|
|
Replace the common rail
assembly.
|
|
|
|
Repair
the damaged harness wire.
|
|
|
|
- Measure engine-ECU terminal voltage.
- Engine: Idling (after warming up)
- Voltage between terminal No. 56 and earth.
|
|
Q.
Is the check result normal?
|
|
Q.
Is the check result normal?
|
|
![](../../../buttons/03btn001.png)
Check intermediate
connector B-127, and repair if necessary. If intermediate connector is
normal, check and repair harness between B-124 (terminal No. 2) rail
pressure sensor connector and D-213 (terminal No. 56) engine-ECU
connector.
- Check output line for open circuit and damage.
|
|
|
|
Repair
or replace the connector.
|
|
|
|
Q.
Is the check result normal?
|
|
Repair
or replace the connector.
|
|
|