Dodge Ram 1998 — technical service bulletin
Bulletin 9847 · NHTSA communication 602283 · issued Aug 19, 1998
Technical service bulletin
communication type
Engine and Engine Cooling
component
1998
model years
1
vehicle entries
Official summary
Some after market exhaust brake installations, especially those with switches that connect to the throttle pedal, can cause mil illumination with tsc po121- accel position sensor volts do not agree w/idle validation sig. *ak
Vehicles covered
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.