no gauges
#1
no gauges
I have nothing but a tach, odometer flashing. Cluster diagnostic test all gauges sweep all lights work. Codes that came up on odometer are 920 921. I’ve replaced fuses, cleaned grounds under battery and in the fuse block. put new connections on both sides for the batteries. 1998.5 24v 5 speed.
#2
Cluster isn't getting it's cue from the PCM. ALL the gauges are fed via the PCM, even oil pressure, and gas gauge..... Since the tach works though, that implies that the cluster is indeed getting its info feed..... The flashing odometer is likely trying to tell you something, but, what that would be, I don't know.
#3
Cluster isn't getting it's cue from the PCM. ALL the gauges are fed via the PCM, even oil pressure, and gas gauge..... Since the tach works though, that implies that the cluster is indeed getting its info feed..... The flashing odometer is likely trying to tell you something, but, what that would be, I don't know.
#4
#6
All the info comes across the the mini-network in your truck. So, basically, its two wires....... Got a service manual for your truck yet? Get one here.
#7
OK, couple possible causes.
1. Grounds. According to theory, there are two on the dash itself. Consult FSM for where they are. There is also the main engine grounds up by the power steering pump. Definitely check those.
2. Poor battery connection on negative terminal.
3. Failing PCM........
1. Grounds. According to theory, there are two on the dash itself. Consult FSM for where they are. There is also the main engine grounds up by the power steering pump. Definitely check those.
2. Poor battery connection on negative terminal.
3. Failing PCM........
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#8
OK, couple possible causes.
1. Grounds. According to theory, there are two on the dash itself. Consult FSM for where they are. There is also the main engine grounds up by the power steering pump. Definitely check those.
2. Poor battery connection on negative terminal.
3. Failing PCM........
1. Grounds. According to theory, there are two on the dash itself. Consult FSM for where they are. There is also the main engine grounds up by the power steering pump. Definitely check those.
2. Poor battery connection on negative terminal.
3. Failing PCM........
what section of the FSM would you look first
god I hope it’s not the ecm, could I try my old 01 ram 1500 ecm engine off for gauge function?
#9