DODGE, RAM PICKUP, 2004, Speed Sense
The PCM is on the passenger side firewall.
dk. green/yellow .....PCM, top black plug, pin 13 .......
(On diesel models, the vss wire is at the ECM on the lower driver side of the engine, 50 pin plug, pin 11.)
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sorry i dont see the reverse wire.. sure someone will chime in with it