DTC P0134:00 [MZR-CD (RF Turbo)]

id0102f1702500

DTC P0134:00

A/F sensor no activity detected
DETECTION CONDITION
•  The PCM monitors the input voltage from A/F sensor when the following conditions are met. If the input voltage from the sensor never exceeds 0.1 V for specified period, the PCM determines that sensor circuit is not activated.
MONITORING CONDITIONS
―  Following conditions are met
•  Engine is running.
•  Battery voltage is 11—16 V.
Diagnostic support note
•  The MIL illuminates if the PCM detects the above malfunction condition in first drive cycle.
•  PENDING CODE is available if the PCM detects the above malfunction condition during the first drive cycle.
•  FREEZE FRAME DATA is available.
•  The DTC is stored in the PCM memory.
POSSIBLE CAUSE
•  A/F sensor deterioration
•  A/F sensor heater malfunction
•  Open circuit or short to ground in wiring harness between A/F sensor terminal A and PCM terminal 93
•  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 the 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 the 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.
3
VERIFY RELATED PENDING AND STORED DTC
Note
•  If fuel monitor DTC, DTC P0132:00 is retrieved, ignore it until P0134:00 is fixed.
•  Switch the ignition to off, then to the ON position (Engine off).
•  Verify pending and stored DTCs using the M-MDS.
•  Are other DTCs present?
Yes
Go to the appropriate DTC troubleshooting procedures.
No
Go to the next step.
4
IDENTIFY TRIGGER DTC FOR FREEZE FRAME DATA
•  Is DTC P0134:00 on FREEZE FRAME DATA?
Yes
Go to the next step.
No
Go to troubleshooting procedures for DTC on FREEZE FRAME DATA.
(See DTC TABLE [MZR-CD (RF Turbo)].)
5
INSPECT A/F SENSOR
•  Inspect A/F sensor.
•  Is there any malfunction?
Yes
Replace the A/F sensor, then go to the next step.
(See AIR FUEL RATIO (A/F) SENSOR REMOVAL/INSTALLATION [MZR-CD (RF Turbo)].)
No
Go to the next step
6
INSPECT A/F SENSOR SIGNAL CIRCUIT FOR OPEN CIRCUIT
•  Inspect for continuity between the A/F sensor terminal A (wiring harness-side) to the PCM terminal 93 (wiring harness-side).
•  Is there continuity?
Yes
Go to the next step
No
Repair or replace the wiring harness for a possible open circuit, then go to Step 8.
7
INSPECT A/F SENSOR SIGNAL CIRCUIT FOR SHORT TO GROUND
•  Inspect for continuity between the A/F sensor terminal A (wiring harness-side) to body ground.
•  Is there continuity?
Yes
Repair or replace the wiring harness for a possible short to ground, then go to the next step.
No
Replace the A/F sensor, then go to the next step.
(See AIR FUEL RATIO (A/F) SENSOR REMOVAL/INSTALLATION [MZR-CD (RF Turbo)].)
8
VERIFY TROUBLESHOOTING OF DTC P0134:00 COMPLETED
•  Make sure to reconnect all disconnected connectors.
•  Switch the ignition to ON (Engine off).
•  Clear the DTC from memory using the M-MDS.
•  Perform the Repair Verification Drive Mode.
•  Is the PENDING CODE for this DTC present?
Yes
Replace the PCM, then go to the next step.
(See PCM REMOVAL/INSTALLATION [MZR-CD (RF Turbo)].)
No
Go to the next step.
9
VERIFY AFTER REPAIR PROCEDURE
•  Perform the “After Repair Procedure”.
•  Are any DTC present?
Yes
Go to the applicable DTC troubleshooting.
(See DTC TABLE [MZR-CD (RF Turbo)].)
No
Troubleshooting completed.