DDEC TROUBLESHOOTING
[b] If terminals and connectors are not damaged, replace the ATS. Refer to section 27.3.6.
Figure 27-4
Air Temperature Sensor
27.3.4
Open Line Check
Perform the following steps to check for an open line.
1. Turn ignition OFF.
2. Disconnect the engine harness connector at the ECM. (Jumper still in place.)
3. Measure resistance between sockets N2 and Y2 on the engine harness connector.
See Figure 27-5.
[a] If the resistance measurement is less than or equal to 5 , refer to section 27.3.5.
All information subject to change without notice.
6SE497 9709 Copyright © 1997 DETROIT DIESEL CORPORATION
27-7
