## Diesel Engine Management System

#### DTC Troubleshooting (cont'd)

11-100

DTC P1095: Fuel Rate Low At Cranking

1. Check the ''On Board Diagnostic (OBD) System Check''.

Was the ''OBD System Check'' performed?

YES – Go to step 2.

NO – Go to OBD System Check.

1. Check the DTC.

Are there any other DTC (beside DTC P1086) being output?

YES – Go to relevant DTC chart.

NO – Go to step 3.

1. Check for the following conditions:

- Damaged supply pump.
- Damaged common rail.
- Damaged fuel metering unit.
- Fuel leaks injection pipes.
- Damaged the RP sensor.

Is a problem found?

YES – Repair as necessary.

NO – Go to step 4.

1. Turn the ignition switch OFF.

1. Disconnect ECM connector.

1. Disconnect the RP sensor 3P connector terminals No. 1 and No. 2 with a jumper wire.

Wire side of female terminals

RP sensor 3P connector

JUMPER WIRE

1. Check the RP sensor signal circuit, +5 V circuit for open.

Is a problem found?

YES – Repair the RP sensor signal or +5 V circuit.

NO – Go to step 8.

1. Check the RP sensor signal voltage.

Is about 5 V indicated?

YES – Substitute a known-good ECM and recheck. If symptom/indication goes away, replace the original ECM.

NO – Go to step 9.

1. Turn the ignition switch OFF.

1. Connect the RP sensor connector.

a a a