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Engine Oil Change Interval – Condition Exists
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Overview
CODE | REASON | EFFECT |
Fault Code: 649 PID: S115 SPN: 1378 FMI: 11/31 LAMP: Maintenance SRT: |
Engine Oil Change Interval – Condition Exists. Change engine oil and filter. |
Maintenance reminder only. |
![]() Maintenance Reminder
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Circuit Description
The electronic control module (ECM) informs the driver of a maintenance event by using the Maintenance Monitor feature’s lubrication oil drain limits.
Component Location
The oil filter is located on the exhaust side of the engine, and the oil fill port varies by application. Refer to Procedure 100-002 (Engine Diagrams) in Section E for a detailed component location for the oil filter and refer to the original equipment manufacturer (OEM) manual for the location of the oil fill port.
Conditions for Running the Diagnostics
This diagnostic runs continuously when the keyswitch is in the ON position.
Conditions for Setting the Fault Codes
The ECM detects that based on the programmable setting in the Maintenance Monitor feature, the engine oil and filter needs to be changed.
Action Taken When the Fault Code is Active
- The ECM illuminates the amber CHECK ENGINE light immediately when the maintenance condition is exceeded.
Conditions for Clearing the Fault Code
The ECM will turn off the amber CHECK ENGINE light immediately after the Maintenance Monitor feature has been reset using INSITE™ electronic service tool.
Shop Talk
Verify the electronic control module (ECM) calibration is correct. Check the calibration revision history found on QuickServe® Online for applicable fixes to the calibration stored in the ECM. If necessary, recalibrate the ECM. Refer to Procedure 019-032 (ECM Calibration Code) in Section 19 in the corresponding Troubleshooting and Repair Manual for the engine being serviced.
This fault code will only become active if the Maintenance Monitor is enabled in INSITE™ electronic service tool. Make sure that the oil and filter are changed before clearing the fault.
Refer to Troubleshooting Fault Code t05-649