DTC P0139:00 [MZR 2.3 DISI Turbo]

id0102g4300400

DTC P0139:00

HO2S circuit slow response
DETECTION CONDITION
•  The PCM monitors the rich (0.55 V) to lean (0.3 V) response time of the HO2S. The PCM measures the response time when the following conditions are met. The PCM determines a HO2S response deterioration malfunction when the measured response time is more than 0.1 s for 2 of 3 times.
MONITORING CONDITIONS
―  Drive Mode 03 (EGR System, A/F sensor heater, HO2S heater, A/F sensor, HO2S, and TWC Repair Verification Drive Mode)
―  The following conditions are met:
•  During deceleration fuel cut
•  Estimated temperature of the zirconia element inside the HO2S: above 450 °C {842 °F}
•  The PCM monitors for a time-out malfunction (when the HO2S remains above 0.2 V for longer than a specified period of time during the fuel cut control). The PCM measures the amount of time from when the following conditions are met until the HO2S output voltage drops below 0.2 V. The PCM determines a HO2S time-out malfunction when the detected time is more than 4 s for 2 of 3 times.
MONITORING CONDITIONS
―  Drive Mode 03 (EGR System, A/F sensor heater, HO2S heater, A/F sensor, HO2S, and TWC Repair Verification Drive Mode)
―  The following conditions are met:
•  During deceleration fuel cut
•  Estimated temperature of the zirconia element inside the HO2S: above 450 °C {842 °F}
Diagnostic support note
•  This is an intermittent monitor (A/F sensor, HO2S).
•  The MIL illuminates if the PCM detects the above malfunction condition in two consecutive drive cycles or in one drive cycle while the DTC for the same malfunction has been stored in the PCM.
•  PENDING CODE is available if the PCM detects the above malfunction condition during first drive cycle.
•  FREEZE FRAME DATA (Mode 2)/Snapshot data is available.
•  The DTC is stored in the PCM memory.
POSSIBLE CAUSE
•  HO2S looseness
•  Exhaust system leakage
•  HO2S malfunction
―  HO2S deterioration
•  High-pressure side fuel delivery system malfunction
―  Fuel pressure sensor (built-in fuel delivery pipe) malfunction
―  Relief valve (built-in fuel delivery pipe) malfunction
―  High pressure fuel pump malfunction
―  Spill valve control solenoid valve (built-in high pressure fuel pump) malfunction
•  Low-pressure side fuel delivery system malfunction
―  Fuel pressure regulator (built-in fuel pump unit) malfunction
―  Fuel pump unit malfunction
―  Fuel filter (built-in fuel pump unit) clogged or restricted
―  Fuel leakage on fuel line from high pressure fuel pump to fuel pump unit
•  Purge solenoid valve malfunction
•  Improper connection of purge solenoid hoses
•  Engine internal malfunction
―  Leakage engine coolant to combustion chamber
―  Insufficient engine compression
•  PCM malfunction

Diagnostic procedure

STEP

INSPECTION

ACTION
1
IDENTIFY TRIGGER DTC FOR FREEZE FRAME DATA (MODE 2)
•  Perform the Freeze Frame PID Data Access Procedure.
•  Is the DTC P0139:00 on FREEZE FRAME DATA (Mode 2)?
Yes
Go to the next step.
No
Go to the troubleshooting procedure for DTC on FREEZE FRAME DATA (Mode 2).
(See DTC TABLE [MZR 2.3 DISI Turbo].)
2
VERIFY FREEZE FRAME DATA (MODE 2)/SNAPSHOT DATA AND DIAGNOSTIC MONITORING TEST RESULTS HAVE BEEN RECORDED
•  Have the FREEZE FRAME DATA (Mode 2)/snapshot data and DIAGNOSTIC MONITORING TEST RESULTS (A/F sensor, HO2S related) been recorded?
Yes
Go to the next step.
No
Record the FREEZE FRAME DATA (Mode 2)/snapshot data and DIAGNOSTIC MONITORING TEST RESULTS on the repair order, then go to the next step.
3
VERIFY RELATED SERVICE INFORMATION AVAILABILITY
•  Verify related Service Information availability.
•  Is any related Service Information available?
Yes
Perform repair or diagnosis according to the available Service Information.
•  If the vehicle is not repaired, go to the next step.
No
Go to the next step.
4
VERIFY RELATED PENDING CODE AND/OR DTC
•  Switch the ignition to off, then to ON (engine off).
•  Perform the Pending Trouble Code Access Procedure and DTC Reading Procedure.
•  Is the PENDING CODE/DTC P0443:00 also present?
Yes
Go to the applicable PENDING CODE or DTC inspection.
(See DTC P0443:00 [MZR 2.3 DISI Turbo].)
No
Go to the next step.
5
INSPECT INSTALLATION OF HO2S
•  Inspect if the HO2S is loosely installed.
•  Is the HO2S installed securely?
Yes
Go to the next step.
No
Retighten the HO2S, then go to Step 16.
(See HEATED OXYGEN SENSOR (HO2S) REMOVAL/INSTALLATION [MZR 2.3 DISI Turbo].)
6
INSPECT EXHAUST GAS LEAKAGE
•  Visually inspect for the exhaust gas leakage between the exhaust manifold and HO2S.
•  Is there any leakage?
Yes
Repair or replace the malfunctioning part according to the inspection results, then go to Step 16.
No
Go to the next step.
7
INSPECT HO2S
•  Inspect the HO2S.
•  Is there any malfunction?
Yes
Inspect the HO2S related wiring harness.
•  If there is no malfunction:
―  Replace the HO2S.
•  If there is a malfunction:
―  Repair or replace the suspected wiring harness.
Go to Step 16.
No
Go to the next step.
8
INSPECT FUEL PRESSURE (HIGH-SIDE)
•  Access the FUEL_PRES PID using the M-MDS.
•  Is the FUEL_PRES PID value within the specification?
Yes
Go to Step 13.
No
Go to the next step.
9
IDENTIFY CAUSE BY FUEL PRESSURE SENSOR OR HIGH PRESSURE FUEL PUMP
•  Is the vehicle accelerate performance normally?
Yes
Go to the next step.
No
Go to Step 11.
10
INSPECT FUEL PRESSURE SENSOR
•  Inspect the fuel pressure sensor.
•  Is there any malfunction?
Yes
Replace the fuel delivery pipe, then go to Step 16.
(See FUEL INJECTOR REMOVAL/INSTALLATION [MZR 2.3 DISI Turbo].)
No
Go to the next step.
11
INSPECT HIGH PRESSURE FUEL PUMP
•  Replace the high pressure fuel pump
•  Access the FUEL_PRES PID using the M-MDS.
•  Is the FUEL_PRES PID value within the specification?
Yes
High-pressure fuel pump or spill valve control solenoid valve (built-in high pressure fuel pump) malfunction.
•  Go to Step 16.
No
Go to the next step.
12
INSPECT FUEL PRESSURE (LOW-SIDE)
•  Connect the fuel pressure gauge between fuel pump and high pressure fuel pump.
•  Measure the low side fuel pressure.
•  Is the low side fuel pressure within the specification?
Yes
Go to the next step.
No
Inspect for the following.
•  Fuel line restriction
•  Fuel filter clogging
If there is no malfunction:
•  Replace the fuel pump unit.
If there is any malfunction:
•  Repair or replace the malfunctioning part according to the inspection results.
Go to Step 16.
13
INSPECT PURGE SOLENOID VALVE
•  Inspect the purge solenoid valve and vacuum hose connection.
•  Is there any malfunction?
Yes
Repair or replace the malfunctioning part according to the inspection results, then go to Step 16.
No
Go to the next step.
14
INSPECT SEALING OF ENGINE COOLANT PASSAGE
•  Perform the “ENGINE COOLANT LEAKAGE INSPECTION”.
•  Is there any malfunction?
Yes
Repair or replace the malfunctioning part according to the inspection results, then go to Step 16.
No
Go to the next step.
15
INSPECT ENGINE COMPRESSION
•  Inspect the engine compression.
•  Is there any malfunction?
Yes
Repair or replace the malfunctioning part according to the inspection results, then go to the next step.
No
Go to the next step.
16
VERIFY DTC TROUBLESHOOTING COMPLETED
•  Make sure to reconnect all disconnected connectors.
•  Clear the DTC from the PCM memory using the M-MDS.
•  Perform the Drive Mode 03 (EGR System, A/F sensor heater, HO2S heater, A/F sensor, HO2S, and TWC Repair Verification Drive Mode).
•  Is the PENDING CODE for this DTC present?
Yes
Repeat the inspection from Step 1.
•  If the malfunction recurs, replace the PCM.
Go to the next step.
No
Go to the next step.
17
VERIFY AFTER REPAIR PROCEDURE
•  Perform the “AFTER REPAIR PROCEDURE”.
•  Are any DTCs present?
Yes
Go to the applicable DTC inspection.
(See DTC TABLE [MZR 2.3 DISI Turbo].)
No
DTC troubleshooting completed.