34.3
TROUBLESHOOTING FLASH CODE 34
[b] If measured resistance between socket C and a good ground is less than 100 ,
the 5 volt supply (#416) is shorted to the battery ground. Repair the short and
refer to section 34.3.11.
Figure 34-6
Turbo Boost Sensor Schematic
34.3.10 Check for Short to Battery +
Perform the following steps to check for short to battery +.
1. Turn vehicle ignition OFF.
2. Remove both fuses to the ECM.
3. Disconnect the engine harness, vehicle harness, and 5-way power connectors at the ECM.
4. Measure resistance between socket W1 on the engine harness connector and socket B3 of
the vehicle harness connector, and between W1 and the 5-way power harness sockets A
and C. See Figure 34-7.
[a] If measured resistance is less than or equal to 100 , a short exists between
sockets where less than 100
was measured. Repair short and reinsert fuses.
Refer to section 34.3.11.
All information subject to change without notice.
34-10
6SE497 9709 Copyright © 1997 DETROIT DIESEL CORPORATION
