13.3
TROUBLESHOOTING FLASH CODE 13
[b] If terminals and connectors are not damaged, replace the CLS. Refer to section 13.3.4.
Figure 13-2
Coolant Level Sensor and Circuits
13.3.3
Check for Short
Perform the following steps to check for a short.
1. Turn ignition OFF.
2. Disconnect the vehicle harness connector at the ECM.
3. Measure resistance between sockets A and B on the CLS harness connector. Also measure
resistance between socket A and battery ground; and socket A and chassis ground.
See Figure 13-2.
[a] If the resistance is greater than 10,000
or open, refer to section 13.3.2.
[b] If the resistance is less than or equal to 10,000 , the signal wire (#115) is shorted to
the ground (#953), or to chassis ground. Repair short; refer to section 13.3.4.
13.3.4
Verify Repairs
Perform the following steps to verify repairs.
1. Turn ignition OFF.
2. Reconnect all connectors.
3. Turn ignition ON.
4. Clear DDR codes.
All information subject to change without notice.
13-6
6SE497 9709 Copyright © 1997 DETROIT DIESEL CORPORATION
