22.3
TROUBLESHOOTING FLASH CODE 22
[b] If measured resistance is less than or equal to 100 , a short exists between
sockets where resistance was measured. Repair short and reinsert fuses;
refer to section 22.3.15.
Figure 22-7
ECM Vehicle Harness Connector
22.3.14 Check for Outside DDEC Battery +
Perform the following steps to check for outside DDEC battery +:
1. Turn ignition OFF.
2. Remove ECM 5-pin power connector.
3. Remove ECM vehicle harness connector.
4. Turn ignition ON.
5. Measure voltage A3 (red lead) to battery ground.
6. Measure voltage C3 (red lead) to battery ground.
[a] If measured voltage is less than 0.2 volts, refer to section 22.3.10.
[b] If measured voltage is greater than 0.2 volts, outside power is spliced/shorted into
either line #952 or line #916. Remove the splice/short. Refer to section 22.3.15.
22.3.15 Verify Repairs
Perform the following steps to verify repairs:
1. Turn ignition OFF.
All information subject to change without notice.
22-12
6SE497 9709 Copyright © 1997 DETROIT DIESEL CORPORATION
