TROUBLESHOOTING FLASH CODE 31
[b] If measured resistance is greater than 50
, one or both wires are open. Repair
open. Refer to section 31.3.10.
Check for Open (Inside Valve Cover)
Perform the following steps to check for open in the inside valve cover.
1. Reconnect the engine harness connector. See Figure 31-1.
2. Relocate the jumper to pins A and B of the brake harness connector (brake side).
3. Remove rocker cover.
4. Disconnect the two #621 leads and the one #622 lead from the brake solenoids.
5. Measure resistance between both #621 wires and #622 wire.
[a] If measured resistance is greater than 50
or open, an open exists in one of the
wires where the check was made. Repair open or replace the injector harness.
Refer to section 31.3.10.
All information subject to change without notice.
6SE497 9709 Copyright © 1997 DETROIT DIESEL CORPORATION