10.2
ENGINE CRANKS BUT WILL NOT START
[c] If all tests do not pass and the test light is not flashing for one or more tests,
refer to section 10.2.8.
Figure 10-1
5-Way ECM Power Harness Connector
10.2.14 Check DDEC Fuses
Perform the following steps to check the DDEC fuses:
1. Check both ECM power fuses or circuit breakers.
[a] If both fuses are okay, refer to section 10.2.15.
[b] If either fuse is not okay, refer to section 10.2.25.
10.2.15 Battery Volts Check
Perform the following steps to check for battery volts at the 5-way connector:
NOTE:
A high resistance in these wires may prevent engine starting but measure correct voltage.
Proper resistance based on wire length and size is listed in Table 46-2.
1. Turn ignition OFF.
2. Disconnect the 5-way power harness connector at the ECM. See Figure 10-2.
3. Measure voltage from socket A (red lead) of 5-way power harness connector to a good
ground.
All information subject to change without notice.
10-8
6SE497 9709 Copyright © 1997 DETROIT DIESEL CORPORATION
