Section 5.24
PID 108, FMI 3, Flash Code 86, Barometric Pressure Sensor Input Voltage High
The input voltage on the Barometric Pressure Sensor (BARO Sensor) is high due to a short.
Section 5.24.1
Troubleshooting PID 108, FMI 3, FLASH CODE 86
Troubleshoot as follows:
NOTICE: |
To avoid damage to the harness and connectors when disconnecting harness connectors, ensure the pulling force is applied to the connectors and not to the wires extending from the connectors. |
- Check wire 904 (purple/white, barometric pressure) cavity L-1 in the Engine Sensor Harness (ESH) 30–pin connector for a short to +12V/+24V (see Figure
"Engine Sensor Harness 30–pin Connector"
). Also check pin B (barometric pressure) in the BARO Sensor connector. If there is a short, repair or replace the wire(s), pins, and sockets.
Figure 1. Engine Sensor Harness 30–pin Connector
- If the code is still active, go to step .
- If the code is not active, refer to "5.24.2 Verification" .
- Check wire 904 (purple/white, barometric pressure) cavity L-1 for a short to wire 416 (gray, sensor supply voltage, 5VDC) cavity W-1 in the ESH 30–pin connector (see Figure
"Engine Sensor Harness 30–pin Connector"
). Also check pin B (barometric pressure) in the BARO Sensor connector and pin B (sensor supply, +5VDC) in the MAP Sensor connector. If there is a short, repair or replace the wire(s), pins, and sockets.
- If the code is still active, call Detroit Diesel Technical Service.
- If the code is not active, refer to "5.24.2 Verification" .
Section 5.24.2
Verification
Verify troubleshooting as follows:
- Check the DDR to see if PID 108, FMI 3, Flash Code 86 is still active.
- If the code is still active, go to step 2.
- If the code is not active, troubleshooting is complete.
- If the code is still active, call Detroit Diesel Technical Service.
Series 50G and 60G Troubleshooting Guide - 6SE482 |
Generated on 10-13-2008 |