How do I fix error code B0004
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what module is setting the code?
Is the speedo working?
Any issue with the gps?
the radio and cluster get a speed signal from the pcm on the same wire. if the speedo in the cluster is working you should check the wire in question for continuity. dark green/white wire connector 2 pin e at the radio and c1 pin 39 at the ecm
Is the speedo working?
Any issue with the gps?
the radio and cluster get a speed signal from the pcm on the same wire. if the speedo in the cluster is working you should check the wire in question for continuity. dark green/white wire connector 2 pin e at the radio and c1 pin 39 at the ecm
Last edited by tech2; Dec 3, 2016 at 4:24 PM.
