DTC P2195, P2197 [MZI-3.7 (PCM CONNECTOR (2 TYPES))]

id0102e3953200

DTC P2195

DTC P2197

P2195: Front HO2S (RH) signal stuck lean

P2197: Front HO2S (LH) signal stuck lean
DETECTION CONDITION
•  A HO2S indicating lean at the end of a test is trying to correct for an over-rich condition. The test fails when the fuel control system no longer detects switching for a calibrated amount of time.
POSSIBLE CAUSE
•  Erratic signal to PCM
―  APP sensor signal malfunction
―  ECT sensor signal malfunction
―  IAT sensor signal malfunction
―  MAF sensor signal malfunction
―  CKP sensor signal malfunction
―  TP sensor signal malfunction
―  VSS signal malfunction
―  Related connector and terminal malfunction
―  Related wiring harness malfunction
•  Air suction at intake-air system malfunction
•  MAF sensor malfunction
•  Leakage exhaust gas
•  Front HO2S malfunction
•  Fuel injector malfunction
•  Insufficient fuel line pressure
•  Leakage fuel
•  PCM malfunction

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 the repair order, then go to the next step.
2
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
Perform the PCM reprogramming procedure.
(See PCM CONFIGURATION [MZI-3.7])
Then go to the next step.
3
VERIFY RELATED PENDING CODE OR STORED DTCs
•  Turn the ignition switch off then to the ON position (Engine off).
•  Verify the related PENDING CODE or stored DTCs using the M-MDS.
Yes
Go to the appropriate DTC troubleshooting.
(See DTC TABLE [MZI-3.7 (PCM CONNECTOR (2 TYPES))].)
No
Go to the next step.
4
IDENTIFY TRIGGER DTC FOR FREEZE FRAME DATA
•  Is DTC P2195 or P2197 on the FREEZE FRAME DATA?
Yes
Go to the next step.
No
Go to the troubleshooting for the DTC on the FREEZE FRAME DATA.
(See DTC TABLE [MZI-3.7 (PCM CONNECTOR (2 TYPES))].)
5
VERIFY CURRENT INPUT SIGNAL STATUS
•  Connect the M-MDS to the DLC-2.
•  Verify the following PIDs.
•  (See PCM INSPECTION [MZI-3.7].)
―  APP1
―  APP2
―  APP3
―  ECT
―  MAF
―  TP_REL
―  VSS
•  Are the PIDs normal?
Yes
Go to the next step.
No
Inspect the malfunctioning part according to the inspection results.
Then go to Step 13.
6
VERIFY CURRENT INPUT SIGNAL STATUS UNDER FREEZE FRAME DATA CONDITION
•  Connect the M-MDS to the DLC-2.
•  Verify the following PIDs under the FREEZE FRAME DATA condition.
―  APP1
―  APP2
―  APP3
―  ECT
―  MAF
―  TP_REL
•  Are the PIDs normal?
Yes
Go to the next step.
No
Inspect the malfunctioning part according to the inspection results. Then go to Step 13.
7
VERIFY CURRENT INPUT SIGNAL STATUS OF MAF SENSOR
•  Connect the M-MDS to the DLC-2.
•  Start the engine.
•  Access the MAF PID.
•  Verify that the MAF PID changes quickly according to the engine speed.
•  Is the PID normal?
Yes
Go to Step 9.
No
Go to the next step.
8
INSPECT INTAKE AIR SYSTEM FOR EXCESSIVE AIR SUCTION
•  Visually inspect for looseness, cracks or damage to the hoses in the intake-air system.
•  Is there any malfunction?
Yes
Repair or replace the malfunctioning part, then go to Step 13.
No
Replace the MAF/IAT sensor, then go to Step 13.
9
INSPECT FRONT HO2S
•  Inspect the front HO2S (RH) (with DTC P2195) or the front HO2S (LH) (with DTC P2197).
•  Is there any malfunction?
Yes
Inspect the related wiring harnesses and exhaust gas leakage
If there is no malfunction
Replace the HO2S, then go to Step 13.
No
Go to the next step.
10
INSPECT FUEL INJECTOR
•  Inspect the fuel injector for the right bank (with DTC P2195) or the left bank (with DTC P2197).
•  Is there any malfunction?
Yes
Replace the suspected fuel injector, then go to Step 13.
(See FUEL INJECTOR REMOVAL/INSTALLATION [MZI-3.7].)
No
Go to the next step.
11
INSPECT FUEL LINE PRESSURE
•  Perform the “FUEL LINE PRESSURE INSPECTION”.
•  Is there any malfunction?
Yes
Go to the next step.
No
Go to Step 13.
12
INSPECT FUEL SYSTEM FOR FUEL LEAKAGE
•  Visually inspect for fuel leakage in the fuel system.
•  Is there fuel leakage?
Yes
Repair or replace the malfunctioning part, then go to the next step.
No
Replace the fuel pump unit, then go to the next step.
(See FUEL PUMP UNIT REMOVAL/INSTALLATION [MZI-3.7].)
13
VERIFY TROUBLESHOOTING OF DTC P2195, P2197 HAS BEEN COMPLETED
•  Verify that all disconnected connectors are reconnected.
•  Turn the ignition switch to the ON position (Engine off).
•  Clear the DTC from the PCM memory using the M-MDS.
•  Perform no load racing at the engine speed of 2,500—3,500 rpm for 60s or more, then idle the engine for 60s or more.
•  Perform the KOEO and KOER self-test.
•  Retrieve DTCs using the M-MDS.
•  Is the PENDING CODE for this DTC present?
Yes
Replace the PCM, then go to the next step.
(See PCM REMOVAL/INSTALLATION [MZI-3.7].)
No
Go to the next step.
14
VERIFY AFTER REPAIR PROCEDURE
•  Perform “AFTER REPAIR PROCEDURE”.
•  Are any DTC present?
Yes
Go to the applicable DTC inspection.
(See DTC TABLE [MZI-3.7 (PCM CONNECTOR (2 TYPES))].)
No
Troubleshooting completed.