41.3
TROUBLESHOOTING FLASH CODE 41
1. Check terminals at the ECM engine harness connectors (both the ECM and harness side)
for damage: bent, corroded, and unseated pins or sockets.
[a] If terminals and connectors are damaged, repair them. Refer to section 41.3.15.
[b] If terminals and connectors are not damaged, install a test ECM.
Refer to section 41.3.15.
41.3.8
Synchronous Reference Sensor Resistance Check
Perform the following steps to check SRS resistance.
1. Measure resistance between sockets S1 and S2 on the engine harness connector.
See Figure 41-5.
[a] If measured resistance is greater than 200
, or open, refer to section 41.3.10.
[b] If measured resistance is less than 200
, or open, refer to section 41.3.9.
Figure 41-5
Engine Harness Connector to Synchronous Reference Sensor
41.3.9
Check for Short
Perform the following steps to check for a short.
1. Disconnect the SRS connector.
2. Measure resistance between sockets S1 and S2 on the engine harness connector.
[a] If measured resistance is greater than 10,000 , or open, refer to section 41.3.11.
All information subject to change without notice.
41-8
6SE497 9709 Copyright © 1997 DETROIT DIESEL CORPORATION
