12/16/2020 FAULT CODE 277 - Injection Control Valve Stator Circuit FAULT CODE 277 - Injection Control Valve Stator Circuit Warnings and Cautions CAUTION To reduce the possibility of pin and harness damage, use the following test leads when taking a measurement: Part Number 3822758 - male AMP™/Deutsch™/Metri-Pack™ test lead and Part Number 3823993 - male Deutsch™/Metri-Pack™ test lead. CAUTION To reduce the possibility of damaging a new engine control module (ECM), all other active fault codes must be investigated prior to replacing the ECM. Troubleshooting Summary STEPS SPECIFICATIONS STEP 1. Check the injection control valve. STEP 1A. Record and clear All inactive fault codes the inactive fault codes. cleared. STEP 1B. Check for codes Fault Code 276 or 277 after performing a click test. logged, or no fault codes present. STEP 2. Check the injection control valve. STEP 2A. Inspect the No damaged pins. injection control valve stator connector for damaged pins. STEP 2B. Check the 0.1 to 1.0 ohms. resistance of the injection control valve stator. https://quickserve.cummins.com/qs3/pubsys2/xml/en/procedures/71/71-t05-277.html 1/17 12/16/2020 FAULT CODE 277 - Injection Control Valve Stator Circuit STEPS SPECIFICATIONS STEP 2C. Check for a short More than 100k ohms. circuit to ground in the injection control valve stator. STEP 3. Check the engine wiring harness. STEP 3A. Inspect the engine No damaged pins. wiring harness and the engine control module (ECM) connector pins. STEP 3B. Check for an open Less than 10 ohms. circuit. STEP 3C. Check for a short More than 100k ohms. circuit to ground. STEP 3C-1. Check for a short More than 100k ohms. circuit to ground. STEP 3D. Check for a short More than 100k ohms. circuit from pin-to-pin. STEP 4. Check the ECM ground circuit. STEP 4A. Check the negative Connection is tight and (-) battery connection for corrosion free. corrosion. STEP 4B. Check the Less than 10 ohms. resistance of the ECM ground circuit. STEP 4C. Inspect the 23-pin No damaged pins or loose original equipment connections. manufacturer (OEM) connector. STEP 4D. Check the Less than 10 ohms. resistance of the OEM ground circuit. STEP 5. Clear the fault codes. STEP 5A. Disable the fault Fault Code 277 inactive. code. STEP 5B. Clear the inactive All fault codes cleared. fault codes. https://quickserve.cummins.com/qs3/pubsys2/xml/en/procedures/71/71-t05-277.html 2/17 12/16/2020 FAULT CODE 277 - Injection Control Valve Stator Circuit STEP 1. Check the injection control valve. STEP 1A. Record and clear the inactive fault codes. Conditions : Connect all components. Turn keyswitch ON. Action Specification/Repair Next Step Record and clear the inactive All inactive fault codes fault codes. 1B cleared. Use INSITE™ electronic service tool All inactive fault codes not to clear the inactive 5B cleared. fault codes. STEP 1B. Check for codes after performing a click test. Conditions : Turn keyswitch ON. Connect INSITE™ electronic service tool. Action Specification/Repair Next Step Use INSITE™ electronic Fault Code 276 or 277 service tool to run the logged, or no fault codes 2A solenoid click test on the present. injection control valve. Listen for a strong, steady, audible click when activating the test and while wiggling the injection control valve stator wires. https://quickserve.cummins.com/qs3/pubsys2/xml/en/procedures/71/71-t05-277.html 3/17 12/16/2020 FAULT CODE 277 - Injection Control Valve Stator Circuit Injection control valve stops clicking or does not click while wiggling wires. Injection control valve clicks erratically during wiggling of wires. Replace the injection control valve stator. Refer to Procedure 019-430 in Section 19. (/qs3/pubsys2/xml/en/proce 5A dures/71/71-019-430.html) Note: A damaged injection control valve can also damage the transient suppressor and/or the ECM. Trying to start the engine with a damaged ECM and/or transient suppressor can cause damage to the injection control valve. STEP 2. Check the injection control valve. STEP 2A. Inspect the injection control valve stator connector for damaged pins. Conditions : Turn keyswitch OFF. Disconnect the engine wiring harness from the injection control valve. Action Specification/Repair Next Step Inspect the injection control No damaged pins. 2B valve connector for the following: Loose connector Corroded pins https://quickserve.cummins.com/qs3/pubsys2/xml/en/procedures/71/71-t05-277.html 4/17 12/16/2020 FAULT CODE 277 - Injection Control Valve Stator Circuit Bent or broken pins Pushed back or expanded pins Moisture in or on the Replace the injection control connector valve stator. Refer to Procedure 019-430 in Missing or damaged Section 19. connector seals (/qs3/pubsys2/xml/en/proce Dirt or debris in or on dures/71/71-019-430.html) the connector pins NOTE: A damaged injection Connector shell broken control valve can also 5A damage the transient Wire insulation damage suppressor and/or the Damaged connector ECM. Trying to start the locking tab. engine with a damaged ECM and/or transient Use the following procedure suppressor can cause for general inspection damage to the injection techniques. Refer to control valve. Procedure 019-361 in Section 19. (/qs3/pubsys2/xml/en/proce dures/99/99-019-361.html) STEP 2B. Check the resistance of the injection control valve stator. Conditions : Turn keyswitch OFF. Disconnect the engine wiring harness from the injection control valve stator. Action Specification/Repair Next Step Check the resistance of the 0.1 to 1.0 ohms. 2C injection control valve stator. Measure the resistance between pin 1 and pin 2 of the injection control valve stator connector. Use a wiring diagram and the following procedure for general resistance measurement techniques. https://quickserve.cummins.com/qs3/pubsys2/xml/en/procedures/71/71-t05-277.html 5/17 12/16/2020 FAULT CODE 277 - Injection Control Valve Stator Circuit Refer to Procedure 019-360 Replace the injection control in Section 19. valve stator. Refer to (/qs3/pubsys2/xml/en/proce Procedure 019-430 in dures/99/99-019-360.html) Section 19. (/qs3/pubsys2/xml/en/proce dures/71/71-019-430.html) NOTE: A damaged injection control valve can also 5A damage the transient suppressor and/or the ECM. Trying to start the engine with a damaged ECM and/or transient suppressor can cause damage to the injection control valve. STEP 2C. Check for a short circuit to ground in the injection control valve stator. Conditions : Turn keyswitch OFF. Disconnect the engine wiring harness from the injection control valve stator. Action Specification/Repair Next Step Check for a short circuit to More than 100k ohms. 3A ground in the injection control valve stator. Measure the resistance from pin 1 of the injection control valve stator connector to chassis ground. Measure the resistance from pin 2 of the injection control valve stator connector to chassis ground. Use a wiring diagram and the following procedure for general resistance measurement techniques. https://quickserve.cummins.com/qs3/pubsys2/xml/en/procedures/71/71-t05-277.html 6/17 12/16/2020 FAULT CODE 277 - Injection Control Valve Stator Circuit Refer to Procedure 019-360 Replace the injection control in Section 19. valve stator. Refer to (/qs3/pubsys2/xml/en/proce Procedure 019-430 in dures/99/99-019-360.html) Section 19. (/qs3/pubsys2/xml/en/proce dures/71/71-019-430.html) NOTE: A damaged injection control valve can also 5A damage the transient suppressor and/or the ECM. Trying to start the engine with a damaged ECM and/or transient suppressor can cause damage to the injection control valve. STEP 3. Check the engine wiring harness. STEP 3A. No damaged pins. Conditions : Turn keyswitch OFF. Disconnect the engine wiring harness from the ECM. Disconnect the engine wiring harness from the injection control valve. Action Specification/Repair Next Step Inspect the engine wiring No damaged pins. 3B harness and the ECM connector pins for the following: Loose connector Corroded pins Bent or broken pins Pushed back or expanded pins https://quickserve.cummins.com/qs3/pubsys2/xml/en/procedures/71/71-t05-277.html 7/17 12/16/2020 FAULT CODE 277 - Injection Control Valve Stator Circuit Moisture in or on the Repair the damaged pins. connector Repair or replace the engine Missing or damaged wiring harness or ECM, connector seals whichever has the damaged Dirt or debris in or on pins. the connector pins Repair the engine Connector shell broken wiring harness. Refer to Procedure 019-204 in Wire insulation damage Section 19. Damaged connector (/qs3/pubsys2/xml/en/pr locking tab. ocedures/99/99-019- 204.html) Refer to Use the following procedure Procedure 019-250 in for general inspection Section 19. techniques. Refer to (/qs3/pubsys2/xml/en/pr Procedure 019-361 in ocedures/71/71-019- Section 19. 250.html) (/qs3/pubsys2/xml/en/proce dures/99/99-019-361.html) Replace the engine wiring harness. Refer to Procedure 019-043 in 5A Section 19. (/qs3/pubsys2/xml/en/pr ocedures/71/71-019- 043.html) Replace the ECM. Refer to Procedure 019-031 in Section 19. (/qs3/pubsys2/xml/en/pr ocedures/71/71-019- 031.html) NOTE: A damaged injection control valve can also damage the transient suppressor and/or the ECM. Trying to start the engine with a damaged ECM and/or transient suppressor can cause damage to the injection control valve. https://quickserve.cummins.com/qs3/pubsys2/xml/en/procedures/71/71-t05-277.html 8/17 12/16/2020 FAULT CODE 277 - Injection Control Valve Stator Circuit STEP 3B. Check for an open circuit. Conditions : Turn keyswitch OFF. Disconnect the engine wiring harness from the ECM. Disconnect the engine wiring harness from the injection control valve. Action Specification/Repair Next Step Check for an open circuit in Less than 10 ohms. 3C the injection control valve circuit. Measure the resistance from pin 7 of the engine Replace the engine wiring wiring harness to pin 1 harness. Refer to Procedure of the injection control 019-043 in Section 19. valve connector. (/qs3/pubsys2/xml/en/proce dures/71/71-019-043.html) Measure the resistance from pin 6 of the engine NOTE: A damaged injection wiring harness to pin 2 control valve can also of the injection control damage the transient 5A valve connector. suppressor and/or the ECM. Trying to start the Use a wiring diagram and engine with a damaged the following procedure for ECM and/or transient general resistance suppressor can cause measurement techniques. damage to the injection Refer to Procedure 019-360 control valve. in Section 19. (/qs3/pubsys2/xml/en/proce dures/99/99-019-360.html) STEP 3C. Check for a short circuit to ground. Conditions : Turn keyswitch OFF. Disconnect the engine wiring harness from the ECM. Disconnect the engine wiring harness from the injection control valve. Action Specification/Repair Next Step Check for a short circuit to More than 100k ohms. 3D ground. https://quickserve.cummins.com/qs3/pubsys2/xml/en/procedures/71/71-t05-277.html 9/17 12/16/2020 FAULT CODE 277 - Injection Control Valve Stator Circuit Measure the resistance from pin 6 of the engine wiring harness connector to chassis ground. Measure the resistance from pin 7 of the engine wiring harness connector to chassis ground. 3C-1 Use a wiring diagram and the following procedure for general resistance measurement techniques. Refer to Procedure 019-360 in Section 19. (/qs3/pubsys2/xml/en/proce dures/99/99-019-360.html) STEP 3C-1. Check for a short circuit to ground. Conditions : Turn keyswitch OFF. Disconnect the engine wiring harness from the ECM. Disconnect the engine wiring harness from the injection control valve stator. Disconnect the transient suppressor. Action Specification/Repair Next Step https://quickserve.cummins.com/qs3/pubsys2/xml/en/procedures/71/71-t05-277.html 10/17 12/16/2020 FAULT CODE 277 - Injection Control Valve Stator Circuit More than 100k ohms. Replace the transient suppressor. Refer to Procedure 019-184 in Section 19. (/qs3/pubsys2/xml/en/pr ocedures/71/71-019- 184.html) NOTE: A damaged injection 5A control valve can also damage the transient Check for a short circuit to suppressor and/or the ground. ECM. Trying to start the engine with a damaged Measure the resistance ECM and/or transient from pin 6 of the engine suppressor can cause wiring harness damage to the injection connector to chassis control valve. ground. Replace the engine wiring Measure the resistance from pin 7 of the engine harness. wiring harness Refer to Procedure connector to chassis 019-043 in Section 19. ground. (/qs3/pubsys2/xml/en/pr ocedures/71/71-019- 043.html) NOTE: A damaged injection control valve can also 5A damage the transient suppressor and/or the ECM. Trying to start the engine with a damaged ECM and/or transient suppressor can cause damage to the injection control valve. STEP 3D. Check for a short circuit from pin to pin. https://quickserve.cummins.com/qs3/pubsys2/xml/en/procedures/71/71-t05-277.html 11/17 12/16/2020 FAULT CODE 277 - Injection Control Valve Stator Circuit Conditions : Turn keyswitch OFF. Disconnect the engine wiring harness from the ECM. Disconnect the engine wiring harness from the injection control valve. Action Specification/Repair Next Step More than 100k ohms. 4A Short circuit from pin 6 to pin 7 or to transient Check for a short circuit from suppressor case. pin to pin. Replace the transient Measure the resistance suppressor. Refer to from pin 6 of the engine Procedure 019-184 in wiring harness Section 19. connector to all other (/qs3/pubsys2/xml/en/pr pins in the connector ocedures/71/71-019- and to the transient 184.html) suppressor case. Short circuit from pin 6 Measure the resistance or pin 7 to any other from pin 7 of the engine pins. Replace the wiring harness engine wiring harness. connector to all other Refer to Procedure 5A pins in the connector 019-043 in Section 19. and to the transient (/qs3/pubsys2/xml/en/pr suppressor case. ocedures/71/71-019- Use a wiring diagram and 043.html) the following procedure for NOTE: A damaged injection general resistance control valve can also measurement techniques. damage the transient Refer to Procedure 019-360 suppressor and/or the in Section 19. ECM. Trying to start the (/qs3/pubsys2/xml/en/proce engine with a damaged dures/99/99-019-360.html) ECM and/or transient suppressor can cause damage to the injection control valve. STEP 4. Check the ECM ground circuit. https://quickserve.cummins.com/qs3/pubsys2/xml/en/procedures/71/71-t05-277.html 12/17 12/16/2020 FAULT CODE 277 - Injection Control Valve Stator Circuit STEP 4A. Check the negative (-) battery connection for corrosion. Conditions : Turn keyswitch ON. Action Specification/Repair Next Step Connection is tight and corrosion free. 4B Check the negative (-) battery Tighten the connection. connection for corrosion and Tighten the loose that all connections are tight. connection and clean 5A the terminal. Refer to the OEM service manual. STEP 4B. Check the resistance of the ECM ground circuit. Conditions : Turn keyswitch OFF. Disconnect the engine wiring harness from the ECM. Action Specification/Repair Next Step https://quickserve.cummins.com/qs3/pubsys2/xml/en/procedures/71/71-t05-277.html 13/17 12/16/2020 FAULT CODE 277 - Injection Control Valve Stator Circuit Check for an open circuit in the ECM ground circuits. Less than 10 ohms. Measure the resistance Replace the injection control from pin 20 to the valve module. Use the negative (-) battery following procedure in the terminal. ISC, ISCe, QSC8.3, ISL and Measure the resistance QSL9 Troubleshooting and from pin 28 to the Repair Manual, Bulletin negative (-) battery 4021418. Refer to terminal. Procedure 005-078 in Section 5. Measure the resistance (/qs3/pubsys2/xml/en/proce from pin 29 to the dures/45/45-005-078.html) 5A negative (-) battery terminal. NOTE: A damaged injection control valve can also Measure the resistance damage the transient from pin 30 to the suppressor and/or the negative (-) battery ECM. Trying to start the terminal. engine with a damaged Use a wiring diagram and ECM and/or transient the following procedure for suppressor can cause general resistance damage to the injection measurement techniques. control valve. Refer to Procedure 019-360 in Section 19. (/qs3/pubsys2/xml/en/proce Ground wire open in either engine or OEM harness. 4C dures/99/99-019-360.html) STEP 4C. Inspect the 23-pin OEM connector. Conditions : Turn keyswitch OFF. Disconnect the engine wiring harness from the battery supply at the 23-pin OEM connector. Action Specification/Repair Next Step Inspect the 23-pin OEM No damaged pins or loose connector on both the battery connections. 4D side and harness side for the following: Loose connector https://quickserve.cummins.com/qs3/pubsys2/xml/en/procedures/71/71-t05-277.html 14/17 12/16/2020 FAULT CODE 277 - Injection Control Valve Stator Circuit Corroded pins Bent or broken pins Pushed back or expanded pins Moisture in or on the connector Missing or damaged connector seals Repair or replace the Dirt or debris in or on damaged pins. the connector pins Refer to Procedure 019-223 5A Connector shell broken in Section 19. Wire insulation damage (/qs3/pubsys2/xml/en/proce dures/71/71-019-223.html) Damaged connector locking tab. Use the following procedure for general inspection techniques. Refer to Procedure 019-361 in Section 19. (/qs3/pubsys2/xml/en/proce dures/99/99-019-361.html) STEP 4D. Check the resistance of the OEM ground circuit. Conditions : Turn keyswitch OFF. Disconnect the engine wiring harness from the 23-pin Deutsch™ connector. Action Specification/Repair Next Step Check the resistance of the Less than 10 ohms. OEM ground circuit. Replace the engine wiring Measure the resistance harness. Refer to Procedure 5A from pins E, F, H, P, 019-043 in Section 19. and W of the battery (/qs3/pubsys2/xml/en/proce return connector to the dures/71/71-019-043.html) negative (-) battery terminal. https://quickserve.cummins.com/qs3/pubsys2/xml/en/procedures/71/71-t05-277.html 15/17 12/16/2020 FAULT CODE 277 - Injection Control Valve Stator Circuit Use a wiring diagram for pin identification and the following procedure for general resistance Repair or replace the OEM measurement techniques. 5A wiring harness. Refer to Procedure 019-360 in Section 19. (/qs3/pubsys2/xml/en/proce dures/99/99-019-360.html) STEP 5. Clear the fault codes. STEP 5A. Disable the fault code. Conditions : Connect all components. Turn keyswitch ON. Connect INSITE™ electronic service tool. Action Specification/Repair Next Step Disable the fault code. Fault Code 277 inactive. 5B Start the engine and let it idle for 1 minute, then increase the engine rpm above 1800 rpm, Return to the then go back to idle troubleshooting steps or three consecutive contact a Cummins® times. Authorized Repair Location 1A if all steps have been Use INSITE™ completed and checked electronic service tool again. to verify Fault Code 277 is inactive. STEP 5B. Clear the inactive fault codes. https://quickserve.cummins.com/qs3/pubsys2/xml/en/procedures/71/71-t05-277.html 16/17 12/16/2020 FAULT CODE 277 - Injection Control Valve Stator Circuit Conditions : Connect all components. Turn keyswitch ON. Connect INSITE™ electronic service tool. Action Specification/Repair Next Step Clear the inactive fault codes. All fault codes cleared. Repair complete Use INSITE™ electronic service tool Troubleshoot any remaining Appropriate to clear the inactive active fault codes. troubleshooting chart fault codes. Last Modified: 27-Oct-2012 https://quickserve.cummins.com/qs3/pubsys2/xml/en/procedures/71/71-t05-277.html 17/17
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