Section 114.1
SPN 3512/FMI 3
This diagnosis typically means the 3 V sensor supply bank 1 circuit failed high.
This fault indicates that the MCM detects a short to power (voltage > 3.2) on any of the MCM pins listed in Table "MCM Pins for Short to Power Check" .
|
Component |
MCM Pin |
|
Fuel Temperature Sensor, Engine Coolant Temperature Sensor |
55 |
|
Fuel Temperature Sensor |
77 |
|
Charge Air Cooler Outlet Pressure Sensor |
102 |
|
Engine Oil Temperature/Pressure Sensor |
108 |
|
Engine Coolant Temperature Sensor |
110 |
Table 1. MCM Pins for Short to Power Check
Inspect the harness and repair as necessary. Refer to "114.1.1 Verify Repairs" .
Section 114.1.1
Verify Repairs
Verify repairs as follows:
- Turn ignition OFF.
- Reconnect any electrical connections that were disconnected to perform the diagnosis.
- Clear codes with DDDL 7.0 or latest version.
- Start and bring engine up to operating temperature (over 140°F/60°C).
- Verify operation is satisfactory and no warning lamps illuminate. If warning lamps illuminate, troubleshoot the codes. If assistance is required, call the Detroit Diesel Customer Support Center at 313–592–5800.
| EPA07 DD15 Troubleshooting Guide - DDC-SVC-MAN-0029 |
| Generated on 10-13-2008 |