15.3
TROUBLESHOOTING FLASH CODE 15
[b] If terminals and connectors are not damaged, replace the OTS.
Refer to section 15.3.10.
Figure 15-4
Temperature Sensor Circuits
15.3.6
Check for Short
Perform the following steps to check for a short.
1. Turn ignition OFF.
2. Disconnect the engine harness connector at the ECM.
3. Measure resistance between sockets P3 (#133) and Y2 (#452) on the engine harness
connector. See Figure 15-5.
4. Measure resistance between socket P3 and a good ground.
[a] If the resistance measurement between sockets P3 and Y2, or P3 and battery ground,
is less than or equal to 5 , the signal line (#133) is shorted to the return line (#452)
or battery ground. Repair the short. Refer to section 15.3.10.
All information subject to change without notice.
15-8
6SE497 9709 Copyright © 1997 DETROIT DIESEL CORPORATION
