P236 troub le code 2002 cummins in a dodge 1 ton

Computers and Control Systems: Diagnostic Trouble Code Tests and Associated Procedures
P0236
SYMPTOM
P0236-MAP SENSOR TOO HIGH TOO LONG
WHEN MONITORED
Engine running.
SET CONDITION
Boost pressure signal indicates boost pressure is high when other engine parameters (i.e. speed and load) indicate boost pressure should be low or
boost pressure is low when other engine parameters indicate it should be high.
POSSIBLE CAUSES
- Other codes
- Checking boost pressure sensor
- Checking the 5-volt supply circuit
- Sensor ground circuit open
- MAP sensor
- MAP signal circuit open
- MAP signal circuit STV
- MAP signal circuit STSG
- MAP signal circuit STG
- ECM