FAULT CODE 254
Fuel Shutoff Valve Solenoid Supply Circuit
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Overview
CODE
Fault Code: 254
PID: S017
SPN: 632
FMI: 4/4
LAMP: Red
SRT:
REASON
Less than (+) 6 VDC detected at fuel shutoff circuit or
an excessive current draw from the electronic control
module (ECM) or faulty ECM output circuit.
EFFECT
The ECM turns off the fuel
shutoff supply voltage. The
engine will shut down.
Circuit Description
The fuel shutoff valve solenoid is a device used by the ECM to control the engine fuel supply. The
ECM can shut down the engine by cutting off the power to the fuel shutoff valve solenoid.
Component Location
The fuel shutoff valve solenoid is located on the fuel delivery housing above the fuel filter.
Shop Talk




Inspect the fuel shutoff supply circuit for external wires that can be spliced in to power another
device. Remove any extra wires that are found in the circuit.
If there is an external shutdown system on the vehicle that uses the fuel shutoff valve for
engine shutdown, make sure it has not failed and pulled down the voltage on the fuel shutoff
circuit.
Inspect the engine-block-to-chassis ground wire to make sure it is securely fastened to a
clean, dry, conductive surface.
Check the starter solenoid (+) terminal for a loose connector or accessory wiring with
damaged insulation.
Cautions and Warnings
CAUTION
To reduce the possibility of damaging the new ECM, all other active fault codes must be
investigated prior to replacing the ECM.
CAUTION
To reduce the possibility of pin and harness damage, use the following test leads when
taking a measurement:
Part Number 3822758 - male Deutsch/AMP/Metri-Pack test lead
Part Number 3822917 - female Deutsch/AMP/Metri-Pack test lead.
CAUTION
To reduce the possibility of damaging a new ECM, all other active fault codes must be
investigated prior to replacing the ECM.
CAUTION
To reduce the possibility of pin and harness damage, use the following test lead when
taking a measurement:
Part Number 3822758 - male Deutsch/AMP/Metri-Pack test lead.
CAUTION
To reduce the possibility of pin and harness damage, use the following test lead when
taking a measurement:
Part Number 3822917 - female Deutsch/AMP/Metri-Pack test lead.
Troubleshooting Steps
STEPS
STEP 1.
SPECIFICATIONS
Check the fuel shutoff valve solenoid.
STEP 1A. Check for extra wires on the
fuel shutoff valve solenoid post.
No extra wires
STEP 1B. Check for corrosion on the
solenoid post.
No corrosion found
STEP 1C. Check the supply voltage at the
fuel shutoff valve solenoid.
More than (+) 6 VDC
STEP 1C-1. Check the actuator harness
STEPS
SPECIFICATIONS
and the ECM connector pins.
STEP 1C-2. Check for an open circuit.
STEP 1C-3. Check for a short circuit from
pin to pin.
STEP 1C-4. Measure the voltage from the
ECM.
STEP 1D. Check the fuel shutoff valve
solenoid resistance.
1 to 5 ohms for 6-VDC solenoids, 6 to 15 ohms
for 12-VDC solenoids, 24 to 50 ohms for 24VDC solenoids, 42 to 80 ohms for 32-VDC
solenoids, 46 to 87 ohms for 36-VDC solenoids,
92 to 145 ohms for 48-VDC solenoids, 315 to
375 ohms for 74-VDC solenoids, 645 to 735
ohms for 115-VAC solenoids
Clear the fault codes.
STEP 2.
STEP 2A. Disable the fault code.
Fault Code 254 inactive
STEP 2B. Clear the inactive fault codes.
All fault codes cleared
Guided Step 1 - Check the fuel shutoff valve solenoid.
Guided Step 1A - Check for extra wires on the fuel shutoff valve solenoid post.
Conditions

Turn keyswitch OFF.
Action
Check for extra wires.

Check for extra wires on the fuel
shutoff valve solenoid post.
OK
NOT OK
No extra wires
Remove extra wires and connect to (+) 12-VDC supply
Go to 1B
Go to 2A
Guided Step 1B - Check for corrosion on the solenoid post.
Conditions


Turn keyswitch OFF.
Disconnect the fuel shutoff control wire
from the fuel shutoff valve solenoid.
Action
Check for corrosion.

Check for corrosion on the solenoid post.
OK
NOT OK
No corrosion found
Clean the solenoid post and the wiring terminal
Refer to Procedure 019-050.
Go to 1C
Go to 2A
Guided Step 1C - Check the supply voltage at the fuel shutoff valve solenoid.
CAUTION
To reduce the possibility of damaging a new ECM, all other active fault codes must be
investigated prior to replacing the ECM.
CAUTION
To reduce the possibility of pin and harness damage, use the following test lead when
taking a measurement:
Part Number 3822758 - male Deutsch/AMP/Metri-Pack test lead.
CAUTION
To reduce the possibility of pin and harness damage, use the following test lead when
taking a measurement:
Part Number 3822758 - male Deutsch/AMP/Metri-Pack test lead.
CAUTION
To reduce the possibility of damaging a new ECM, all other active fault codes must be
investigated prior to replacing the ECM.
CAUTION
To reduce the possibility of pin and harness damage, use the following test lead when
taking a measurement:
Part Number 3822917 - female Deutsch/AMP/Metri-Pack test lead.
Conditions


Disconnect the actuator harness
from the fuel shutoff valve solenoid.
Turn keyswitch ON.
Action
Check the supply voltage at the fuel shutoff
valve solenoid.

Measure the voltage from the fuel
shutoff control wire connectors on
the harness side to engine block
ground.
OK
NOT OK
More than (+) 6 VDC
Does not meet specifications
Go to 1D
Go to 1C-1
Guided Step 1C-1 - Check the actuator harness and the ECM connector pins.
CAUTION
To reduce the possibility of damaging a new ECM, all other active fault codes must be
investigated prior to replacing the ECM.
Conditions


Turn keyswitch OFF.
Disconnect the actuator harness connector
from the ECM.
Action
Check the actuator harness and the ECM connector
pins for the following:









Loose connector
Corroded pins
Bent or broken pins
Pushed back or expanded pins
Moisture in or on the connector
Dirt or debris in or on the connector pins
Missing or damaged connector seals
Wire insulation damage
Connector shell broken.
For general inspection techniques, refer to
Component Connector and Pin Inspection,
Procedure 019-361.
OK
NOT OK
No damaged pins
Repair the damaged pins
Repair or replace the engine harness, or replace the
ECM, whichever has the damaged pins.





Go to 1C-2
Guided Step 1C-2 - Check for an open circuit.
Flush the dirt, debris, or moisture from the
connector pins using the electrical contact
cleaner, Part Number 3824510.
Install the appropriate connector seal if it is
damaged or missing.
Repair the engine harness. Refer to Procedure
019-204.
Replace the engine harness. Refer to Procedure
019-043.
Replace the ECM. Refer to Procedure 019-031.
Go to 2A
CAUTION
To reduce the possibility of pin and harness damage, use the following test lead when
taking a measurement:
Part Number 3822758 - male Deutsch/AMP/Metri-Pack test lead.
Conditions



Turn keyswitch OFF.
Disconnect the actuator
harness from the fuel
shutoff valve solenoid.
Disconnect the actuator
harness connector from
the ECM.
Action
Check for an open circuit.

Measure the resistance
from pin 33 of the actuator
harness to the fuel shutoff
control wire.
For general resistance
measurement techniques, refer to
Resistance Measurements Using a
Multimeter and Wiring Diagram,
Procedure 019-360.
OK
NOT OK
Less than 10 ohms
Repair or replace the engine harness


Repair the engine harness. Refer to Procedure 019-204.
Replace the engine harness. Refer to Procedure 019-043.
Go to 1C-3
Go to 2A
Guided Step 1C-3 - Check for a short circuit from pin to pin.
CAUTION
To reduce the possibility of pin and harness damage, use the following test lead when
taking a measurement:
Part Number 3822758 - male Deutsch/AMP/Metri-Pack test lead.
Conditions



Turn keyswitch OFF.
Disconnect the actuator harness
from the fuel shutoff valve
solenoid.
Disconnect the actuator harness
connector from the ECM.
Action
Check for a short circuit from pin to pin.

Measure the resistance from pin
33 of the actuator harness
connector to all other pins in the
connector.
For general resistance measurement
techniques, refer to Resistance
Measurements Using a Multimeter and
Wiring Diagram, Procedure 019-360.
OK
NOT OK
More than 100k ohms
Repair or replace the engine harness


Repair the engine harness. Refer to Procedure 019-204.
Replace the engine harness. Refer to Procedure 019-043.
Go to 1C-4
Go to 2A
Guided Step 1C-4 - Measure the voltage from the ECM.
CAUTION
To reduce the possibility of damaging a new ECM, all other active fault codes must be
investigated prior to replacing the ECM.
CAUTION
To reduce the possibility of pin and harness damage, use the following test lead when
taking a measurement:
Part Number 3822917 - female Deutsch/AMP/Metri-Pack test lead.
Conditions

Disconnect the actuator harness
connector from the ECM.
Turn keyswitch ON.

Action
Measure the voltage from the ECM.

Measure the voltage at the ECM
from pin 33 of the actuator
harness connector port to engine
block ground.
OK
NOT OK
More than (+) 6 VDC
Replace the ECM
Repair or replace the engine harness.
Refer to Procedure 019-031.

Repair the engine harness. Refer to
Procedure 019-204.
Replace the engine harness. Refer
to Procedure 019-043.

Go to 2A
Go to 2A
Guided Step 1D - Check the fuel shutoff valve solenoid resistance.
CAUTION
To reduce the possibility of damaging a new ECM, all other active fault codes must be
investigated prior to replacing the ECM.
Conditions


Turn keyswitch OFF.
Disconnect the actuator
harness from the fuel shutoff
valve solenoid.
Action
Check the fuel shutoff valve
solenoid resistance.

Measure the resistance from
the fuel shutoff valve
solenoid to engine block
ground.
OK
NOT OK
1 to 5 ohms for 6-VDC solenoids
Replace the fuel shutoff valve solenoid
6 to 15 ohms for 12-VDC solenoids
Refer to Procedure 019-050.
24 to 50 ohms for 24-VDC solenoids
42 to 80 ohms for 32-VDC solenoids
46 to 87 ohms for 36-VDC solenoids
92 to 145 ohms for 48-VDC solenoids
315 to 375 ohms for 74-VDC
solenoids
645 to 735 ohms for 115-VAC
solenoids
Go to 2A
Guided Step 2 - Clear the fault codes.
Guided Step 2A - Disable the fault code.
Conditions


Connect all components.
Turn keyswitch ON.
Go to 2A
Action
Disable the fault code.


Start the engine and let it idle for one
minute.
Use INSITE™ electronic service tool to
verify Fault Code 254 is inactive.
OK
NOT OK
Fault Code 254 inactive
Return to the troubleshooting steps or contact a local
Cummins Authorized Repair Location if all the steps
have been completed and rechecked.
Go to 2B
Go to 1A
Guided Step 2B - Clear the inactive fault codes.
Conditions


Connect all components.
Turn keyswitch ON.
Action
Clear the inactive fault codes.

Use INSITE™ electronic service tool to
erase the inactive fault codes.
OK
NOT OK
All fault codes cleared
Troubleshoot any remaining active fault codes.
Repair complete
Last Modified: 01-Feb-2005
Copyright© 2005
Cummins, Inc.
All rights reserved
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