Nissan Terrano r20e. Manual — part 113

DTC Confirmation Procedure

WITH CONSULT-II

1) Turn ignition switch “ON”, and wait at least 6 seconds.
2) Select “DATA MONITOR” mode with CONSULT-II.
3) Start engine and wait at least 3 seconds.
4) If DTC is detected, go to “Diagnostic Procedure”, EC-92.

WITHOUT CONSULT-II

1) Turn ignition switch “ON”, and wait at least 6 seconds.
2) Start engine and wait at least 3 seconds.
3) Turn ignition switch “OFF”, wait at least 5 seconds and then turn

“ON”.

4) Perform “Diagnostic Test Mode II (Self-diagnostic results)” with

ECM.

5) If DTC is detected, go to “Diagnostic Procedure”, EC-92.

SEF817Y

DTC 0102 MASS AIR FLOW SEN

ZD30DDTi

EC-89

Wiring Diagram

LHD MODELS

YEC173A

DTC 0102 MASS AIR FLOW SEN

ZD30DDTi

EC-90

RHD MODELS

YEC174A

DTC 0102 MASS AIR FLOW SEN

ZD30DDTi

Wiring Diagram (Cont’d)

EC-91

Diagnostic Procedure

1

CHECK MAFS POWER SUPPLY CIRCUIT

1. Turn ignition switch “OFF”.
2. Disconnect mass air flow sensor harness connector.

MEC993D

3. Turn ignition switch “ON”.
4. Check voltage between mass air flow sensor terminals 2, 4 and ground with CONSULT-II or tester.

MEC973D

MTBL1318

OK or NG

OK

E

GO TO 3.

NG

E

GO TO 2.

2

DETECT MALFUNCTIONING PART

Check the following.

I

Harness connectors M787, F66 (LHD models)

I

Harness connectors F135, M842 (RHD models)

I

Harness for open or short between mass air flow sensor and ECM

I

Harness for open or short between mass air flow sensor and ECM relay

E

Repair open circuit or short to ground or short to power in harness or connector.

DTC 0102 MASS AIR FLOW SEN

ZD30DDTi

EC-92