DTC P0236 (1.5 L Engine)

DTC P0236  : Turbocharger Boost Sensor Circuit Range/Performance Problem

NOTE:  Before you troubleshoot, review the general troubleshooting information .

DTC (PGM-FI)

1. Problem verification

   -1. Turn the vehicle to the ON mode.

   -2. Clear the DTC with the HDS.

   -3. Start the engine.

   -4. Hold the engine speed at 3, 000 rpm without load (in P or N) until the radiator fan comes on, then let it idle at least 6 seconds.

   -5. Check for Pending or Confirmed DTCs with the HDS.

   DTC Description	Confirmed DTC	Pending DTC
   P0236 Turbocharger Boost Sensor Circuit Range/Performance Problem

   Is DTC P0236 indicated?

   YES 

   The failure is duplicated. Go to step 2.

   NO 

   Intermittent failure, the system is OK at this time. Check for poor connections or loose terminals at turbocharger boost sensor and the PCM. If the on-board snapshot of this DTC is recorded, try to reproduce the failure under the same conditions with the on-board snapshot .

2. Turbocharger boost sensor check 1

   -1. Check the parameters below with the HDS.

   Signal	Current conditions
   	Values	Unit
   TC BOOST PRESSURE
   BARO SENSOR

   -2. Compare the value of TC BOOST PRESSURE to the BARO SENSOR.

   Is the difference in value between the sensors 26.7 kPa (7.9 inHg, 200 mmHg) or more?

   YES 

   Replace the turbocharger boost sensor .

   NO 

   Go to step 3.

3. Turbocharger boost sensor check 2

   -1. Note the value of TC BOOST PRESSURE in the DATA LIST with the HDS.

   -2. Start the engine.

   -3. Hold the engine speed at 3, 000 rpm without load (in P or N) until the radiator fan comes on, then let it idle.

   -4. Hold the engine speed at 4, 500 rpm without load.

   -5. Check the parameter below with the HDS.

   Signal	Current conditions
   	Values	Unit
   TC BOOST PRESSURE

   Does the value change 0.67 kPa (0.2 inHg, 5 mmHg) or more?

   YES 

   Go to step 4.

   NO 

   Replace the turbocharger boost sensor .

4. Problem verification (test-drive):

   Test-drive the vehicle for several minutes in the range of these recorded on-board snapshot parameters:

   • ENGINE SPEED
   • VEHICLE SPEED
   • REL TP SENSOR
   • CLV (calculated load value)
   • APP SENSOR

   On-board Snapshot

   -2. Monitor the OBD STATUS for DTC P0236 in the DTCs MENU with the HDS.

   DTC Description	OBD STATUS
   P0236 Turbocharger Boost Sensor Circuit Range/Performance Problem

   Does the HDS indicate FAILED?

   YES 

   Replace the turbocharger boost sensor .

   NO 

   If the HDS indicates PASSED, intermittent failure, the system is OK at this time. Check for poor connections or loose terminals at turbocharger boost sensor and the PCM. If the on-board snapshot of this DTC is recorded, try to reproduce the failure under the same conditions with the on-board snapshot . If the HDS indicates NOT COMPLETED, retest and check the OBD STATUS again.