2000 Dodge Ram 110k miles While driving, I lost all gauges on the instrument panel. The display read
No bu5 obd came back p-0720 and p-1687 After sitting, the cluster was normal while cold but as soon as the engine warmed, the same problem came back.
Can you tell me what these codes mean? Thanks
Thursday, November 1st, 2007 AT 3:35 PM
1 Reply
MERLIN2021
MECHANIC
17,250 POSTS
P0720= output speed sensor curcuit. Thats the output shaft on the tranny.
P1687= no mechanical instrument cluster bus message. May be the sensor, but more lilsey thw wires at the output sensor.