DDEC TROUBLESHOOTING
24.3 TROUBLESHOOTING FLASH CODE 24
The following procedure will troubleshoot Flash Code 24.
24.3.1
Multiple Code Check
Perform the following steps to check for multiple codes.
1. Turn ignition ON.
2. Plug in DDR.
3. Read active codes.
[a] If active code 174/4 and no other active codes are logged, refer to section 24.3.2.
[b] If any or all of the following codes are logged, 110/3, 175/3, 174/3, or 102/3,
refer to section 91.2.
[c] If codes other than the above are logged, refer to section 24.3.2.
24.3.2
Sensor Check
Perform the following steps to check the sensor:
1. Turn ignition OFF.
2. Disconnect the FTS connector.
3. Start and run engine for eight minutes.
4. Read active codes with engine still running.
[a] If code 174/4 and any other codes are logged, refer to section 24.3.4.
[b] If code 174/3 and any other codes except 174/4 are logged, refer to section 24.3.3.
24.3.3
Check Fuel Temperature Sensor Connectors
Perform the following steps to check the FTS connectors:
1. Check terminals at the FTS connector (both sensor and harness side) for bent, corroded,
and unseated pins or sockets. See Figure 24-2.
[a] If terminals and connectors are damaged, repair them. Refer to section 24.3.6.
All information subject to change without notice.
6SE497 9709 Copyright © 1997 DETROIT DIESEL CORPORATION
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