DTC P0106 [AJ]

BME010200100204

Australian, General (L.H.D. R.H.D.) Specs.

DTC P0106

EGR boost sensor circuit performance problem

DETECTION CONDITION

• PCM monitors differences between intake manifold vacuum and atmospheric pressure at idle, which EGR boost sensor detects by switching EGR boost sensor solenoid. If difference is below 6.43 kPa {48.2 mmHg, 1.90 inHg}, PCM determines that there is a EGR boost sensor performance problem.
Diagnostic support note
• This is a continuous monitor (CCM).
• MIL illuminates if PCM detects the above malfunction condition in two consecutive drive cycles.
• PENDING CODE is available if PCM detects the above malfunction condition during first drive cycle.
• FREEZE FRAME DATA is available.
• DTC is stored in the PCM memory.

POSSIBLE CAUSE

• EGR boost sensor malfunction or substandard performance
• EGR boost sensor solenoid malfunction
• Loosed, damaged, misconnected, clogged or frozen moisture in vacuum hose from EGR boost sensor solenoid to EGR boost sensor
• Loosed, damaged, misconnected, clogged or frozen moisture in vacuum hose from EGR boost sensor solenoid to EGR pipe

Diagnostic procedure

STEP

INSPECTION

ACTION

1
VERIFY FREEZE FRAME DATA HAS BEEN RECORDED
• Has FREEZE FRAME DATA been recorded?
Yes
Go to the next step.
No
Record FREEZE FRAME DATA on repair order, then go to the next step.
2
VERIFY RELATED SERVICE INFORMATION AVAILABILITY
• Check for related Service Information availability.
• Is any related Service Information available?
Yes
Perform repair or diagnosis according to available Service Information.
• If vehicle is not repaired, go to the next step.
No
Go to the next step.
3
IDENTIFY TRIGGER DTC FOR FREEZE FRAME DATA
• Is DTC P0106 on FREEZE FRAME DATA?
Yes
Go to the next step.
No
Go to troubleshooting procedures for DTC on FREEZE FRAME DATA.
4
INSPECT CONNECTION OF EGR BOOST SENSING RELATED VACUUM HOSES
• Inspect the following vacuum hoses for loose, damage, improper connection and/or clog.
- From EGR boost sensor to EGR boost sensor solenoid
- From EGR boost sensor solenoid to EGR pipe
• Are they normal?
Yes
Go to the next step.
No
Repair or replace the vacuum hose, then go to Step 8.
5
INSPECT EGR BOOST SENSOR SOLENOID AIR FILTER FOR CLOG
• Has EGR boost sensor solenoid air filter been clogged?
Yes
Repair air clogging, then go to Step 8.
No
Go to the next step.
6
INSPECT EGR BOOST SENSOR SOLENOID FOR STUCK OPEN OR CLOSED
• Inspect the EGR boost sensor solenoid.
• Is the EGR boost sensor solenoid normal?
Yes
Go to the next step.
No
Replace the EGR boost sensor solenoid, then go to Step 8.
7
INSPECT EGR BOOST SENSOR FOR STUCK OPEN OR CLOSED
• Inspect the EGR boost sensor.
• Is the EGR boost sensor normal?
Yes
Go to the next step.
No
Replace the EGR boost sensor, then go to the next step.
8
VERIFY TROUBLESHOOTING OF DTC P0106 COMPLETED
• Make sure to reconnect all disconnected connectors.
• Turn the ignition switch to the ON position (Engine off).
• Clear the DTC from the PCM memory using the WDS or equivalent.
• Run PCM adaptive memory procedure drive mode and HO2S heater, HO2S, and EGR system repair verification drive mode.
• Stop vehicle.
• Is the same DTC present?
Yes
Replace the PCM, then go to the next step.
No
Go to the next step.
9
VERIFY AFTER REPAIR PROCEDURE
• Perform "After Repair Procedure".
• Is there any DTC present?
Yes
Go to the applicable DTC inspection.
No
Troubleshooting completed.