Diagnostic Trouble Codes - MCS Control Panel Diagnostic Trouble Codes
The following codes are generated by the MCS control panel (if equipped).
8XXX codes are related to engine faults and are linked to the equivalent J1939 code in Table 1.
4XXX codes indicate faults that either cause an engine shutdown or indicate an open circuit for the sensor. These codes are detailed in Table 2.
Show/hide table
| MCS Code | Display Description | J1939 Code |
|---|---|---|
| 8021 | EIC Overspeed 1 | 190-15 |
| 8061 | EIC Fuel R. P.1 | 157-16 |
| 8081 | Oil pres. Warn | 100-17 |
| 8121 | EIC oil filt.1 | 99-15 |
| 8161 | EIC fuel filt.1 | 1382-15 |
| 8201 | EIC fuel filt.S | 95-15 |
| 8221 | EIC Sea. P.1 | 2435-17 |
| 8241 | EIC Coolant P. 1 | 109-15 |
| 8261 | EIC Coolant T. 1 | 110-15 |
| 8341 | EIC Oil temp. 1 | 175-15 |
| 8481 | EIC Fuel Leak | 1239-31 |
| 8541 | EIC Fuel f. P.1 |
Show/hide table
| Channel Code | Display Description | Actions |
|---|---|---|
| 4110 | WB Hi. Cool. T | There is an open circuit between the MCS coolant temperature sensor and the MCS control panel. Refer to the Electrical Schematic and investigate the wiring. |
| 4121 | Cool temp shutdown | The coolant temperature has reached the trip point where the control panel has shut down the engine. Refer to Troubleshooting, "Coolant Temperature Is High" to investigate the cause of the high coolant temperature. |
| 4251 | Oil press shutdown | The engine oil pressure has dropped to the trip point where the control panel has shut down the engine. Refer to Troubleshooting, "Oil Pressure Is Low" to investigate the cause of the low engine oil pressure. |
| 4371 | WB Low oil pres | There is an open circuit between the MCS oil pressure sensor and the MCS control panel. Refer to the Electrical Schematic and investigate the wiring. |
| 4521 | Overspeed 2 | The MCS speed sensor has detected an engine overspeed. Refer to diagnostic code 190-0 in Troubleshooting, "Diagnostic Trouble Codes". |
| 4551 | MPU Wire break | There is an open circuit between the MCS speed sensor and the MCS control panel. Refer to the Electrical Schematic and investigate the wiring. |
| 4591 | Underspeed 1 | The MCS speed sensor has detected an engine underspeed. Refer to Troubleshooting, "Engine Top Speed Is Not Obtained" for further information. |
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