P0236 MAP SENSOR TOO HIGH TOO LONG

When Monitored and Set Condition:

When Monitored: Ignition on.
Set Condition: The intake air pressure is above a calibrated value past a calibrated amount of time.

POSSIBLE CAUSES

• OTHER CODES
• INTERMITTENT CONDITION
• MAP SENSOR
• INTERMITTENT CONDITION

DIAGNOSTIC PROCEDURE

NOTE: Refer to VERIFICATION TESTS for appropriate verification test procedures.

1. Turn the ignition on. With the DRBIII®, read the Engine DTC's. Are there any other MAP Sensor related DTC's.
   Yes --> Repair other MAP Sensor DTC's. Perform POWERTRAIN VERIFICATION TEST VER - 1 (DIESEL).
   No --> Go To 2
2. Start the engine. With the DRBIII®, read the MAP Sensor voltage. Is the pressure reading of the MAP sensor less than 35.85 in Hg?
   Yes --> Go To 3
   No --> Replace the MAP Sensor. Perform POWERTRAIN VERIFICATION TEST VER - 1 (DIESEL).
3. Operate the engine under normal driving conditions (no load) for at least 30 seconds. Monitor the MAP sensor reading with the DRBIII®. Did the pressure reading from the MAP sensor go above 22.5 in Hg for more than 2.5 seconds?
   Yes --> Replace the Map sensor. Perform POWERTRAIN VERIFICATION TEST VER - 1 (DIESEL).
   No --> Refer to the SYMPTOM: INTERMITTENT CONDITION. Perform POWERTRAIN VERIFICATION TEST VER - 1 (DIESEL).