## DTC Troubleshooting: P2227 (13)

DTC P2227: | BARO Sensor Range/Performance Problem

1. | Turn the ignition switch ON (II).

2. | Check the BARO SENSOR in the DATA LIST with the HDS. Is atmospheric pressure indicated? YES - Go to 3. NO - Go to 7.

3. | Do the DTC CLEAR in the CLEAR MENU with the HDS.

4. | Start the engine. Hold the engine speed at 3,000 rpm (min-1) with no load (in neutral) until the radiator fan comes on, then let it idle.

5. | Test-drive under following conditions. Engine Coolant temperature more than 158°F (70°C) Transmission in 2nd position Vehicle speed 0 km/h (0 mph) to 60 km/h (38 mph) with fully acceleration

6. | Monitor the OBD STATUS for DTC P2227 in the DTCs MENU with the HDS. Is it FAILED? YES - Go to 7. NO - If it is PASSED, intermittent failure, system is OK at this time. If it is NOT COMPLETED, go to 4 and recheck.

7. | Substitute a known-good ECM.

8. | Check for Temporary DTCs or DTCs in the DTCs MENU with the HDS. Are any Temporary DTCs or DTCs indicated? YES - If DTC P2227 indicated, check for poor connections at the ECM, then go to 1. If any other Temporary DTCs or DTCs are indicated, go to the indicated DTC troubleshooting. NO - Replace the original ECM.n