DTC DETECTION LOGIC To judge the malfunction, the diagnosis checks that the A/F signal computed by ECM from the A/F sensor 1 signal is not inordinately high.

DTC No. | Trouble diagnosis name | DTC detecting condition | Possible Cause
P0132 | Air fuel ratio (A/F) sensor 1 (bank 1) circuit high voltage |

- The A/F signal computed by ECM from the A/F sensor 1 signal is constantly approx. 5 V.

- Harness or connectors
  (The A/F sensor 1 circuit is open or shorted.)
- A/F sensor 1

P0152 | Air fuel ratio (A/F) sensor 1 (bank 2) circuit high voltage

DTC CONFIRMATION PROCEDURE
1.PRECONDITIONING
If DTC Confirmation Procedure has been previously conducted, always perform the following procedure before conducting the next test.

1. Turn ignition switch OFF and wait at least 10 seconds.
2. Turn ignition switch ON.
3. Turn ignition switch OFF and wait at least 10 seconds.

TESTING CONDITION:
Before performing the following procedure, confirm that battery voltage is more than 10.5 V at idle.
>>GO TO 2.
2.CHECK A/F SENSOR FUNCTION

1. Start engine and warm it up to normal operating temperature.
2. Select “A/F SEN1 (B1)” or “A/F SEN1 (B2)” in “DATA MONITOR” mode with CONSULT-III.
3. Check “A/F SEN1 (B1)” or “A/F SEN1 (B2)” indication.

Is the indication constantly approx. 5V?
YES>>Go to Diagnosis Procedure (GT-R certified NISSAN dealer).
NO>>GO TO 3.
3.PERFORM DTC CONFIRMATION PROCEDURE

1. Turn ignition switch OFF and wait at least 10 seconds.
2. Turn ignition switch ON.
3. Turn ignition switch OFF, wait at least 10 seconds and then restart engine.
4. Drive and accelerate vehicle to more than 40 km/h (25 MPH) within 20 seconds after restarting engine.
   ■ CAUTION ■
   Always drive vehicle at a safe speed.
5. Maintain the following conditions for about 20 consecutive seconds.

   ENG SPEED | 1,000 - 3,200 rpm
   VHCL SPEED SE | More than 40 km/h (25 MPH)
   B/FUEL SCHDL | 1.5 - 9.0 msec
   Selector lever | Suitable position

   NOTE：
   - Keep the accelerator pedal as steady as possible during the cruising.
   - If this procedure is not completed within 1 minute after restarting engine at step 1, return to step 1.
6. Check 1st trip DTC.

Is 1st trip DTC is detected?
YES>>Go to Diagnosis Procedure (GT-R certified NISSAN dealer).
NO>>INSPECTION END