NOTE: Please see the step by step troubleshooting procedures for this specific code.
NOTE: If inactive, clear the code, cycle the engine, and see if comes back. If it doesn’t problem solved.
Otherwise, possible failures are:
1. Measure voltage on the ECM 21-pin connector pin 7 and ground. If less than 11.5 V, repair the wiring to pin 7.
2. If 11.5V or greated, find the Common Powertrain Controller connect #2. Measure the voltage between pin 3 and ground. If less than 11.5V, find source of problem.
Detroit DD16 GHG14 (2014-16) Fault Code: SPN 157 FMI 18 (MCM) Fuel Rail Pressure Too High
Detroit DD16 GHG14 (2014-16) Fault Code: SPN 157 FMI 17 (MCM) Minimum Rail Pressure Not Achieved While the Engine is Cranking
Detroit DD16 GHG14 (2014-16) Fault Code: SPN 157 FMI 16 (MCM) Fuel Rail Pressure Too Low
Detroit DD16 GHG14 (2014-16) Fault Code: SPN 157 FMI 15 (MCM) Rail Pressure Level for Injection Enabling Not Reached
Detroit DD16 GHG14 (2014-16) Fault Code: SPN 157 FMI 10 (MCM) Under-Capacity in the High Pressure Circuit
Detroit DD16 GHG14 (2014-16) Fault Code: SPN 132 FMI 1 (MCM) Air Mass Flow Too Low
