Nissan Terrano r20e. Instruction — part 128

Diagnostic Procedure

1

CHECK CRANKSHAFT POSITION SENSOR (TDC) GROUND CIRCUIT FOR OPEN AND SHORT

1. Turn ignition switch “OFF”.
2. Loosen and retighten engine ground screws.

MEC994D

3. Disconnect crankshaft position sensor (TDC) harness connector and ECM harness connector.

MEC998D

MEC018E

4. Check harness continuity between ECM terminal 47 and terminal 2. Refer to Wiring Diagram.

Continuity should exist.

5. Also check harness for short to ground and short to power.

OK or NG

OK

E

GO TO 3.

NG

E

GO TO 2.

DTC 0407 CRANK POS SEN (TDC)

ZD30DDTi

EC-149

2

DETECT MALFUNCTIONING PART

Check the following.

I

Harness connectors F106, E227

I

Harness connectors M842, F135 (RHD models)

I

Harness for open or short between crankshaft position sensor (TDC) and ECM

E

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

3

CHECK CRANKSHAFT POSITION SENSOR (TDC) INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT

1. Check harness continuity between terminal 1 and ECM terminal 44. Refer to Wiring Diagram.

Continuity should exist.

2. Also check harness for short to ground and short to power.

OK or NG

OK

E

GO TO 5.

NG

E

GO TO 4.

4

DETECT MALFUNCTIONING PART

Check the following.

I

Harness connectors F106, E227

I

Harness connectors M842, F135 (RHD models)

I

Harness for open or short between crankshaft position sensor (TDC) and ECM

E

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

5

CHECK CRANKSHAFT POSITION SENSOR SHIELD CIRCUIT

1. Check harness continuity between crankshaft position sensor (TDC) terminal 3 and engine ground. Refer to Wiring Diagram.

Continuity should exist.

2. Also check harness for short to ground and short to power.

OK or NG

OK

E

GO TO 7.

NG

E

GO TO 6.

6

DETECT MALFUNCTIONING PART

Check the following.

I

Harness connectors F106, E227

I

Harness connectors F108, E225

I

Harness connectors M842, F135 (RHD models)

I

Harness for open or short between crankshaft position sensor (TDC) and engine ground

E

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

DTC 0407 CRANK POS SEN (TDC)

ZD30DDTi

Diagnostic Procedure (Cont’d)

EC-150

7

CHECK CRANKSHAFT POSITION SENSOR (TDC) INSTALLATION

Check the clearance between crankshaft position sensor (TDC) and protrusion on the crankshaft pulley.

JEF293Z

OK or NG

OK

E

GO TO 8.

NG

E

GO TO 9.

8

REINSTALL CRANKSHAFT POSITION SENSOR (TDC)

1. Remove crankshaft position sensor (TDC).
2. Install crankshaft position sensor (TDC) properly.

JEF294Z

E

INSPECTION END

DTC 0407 CRANK POS SEN (TDC)

ZD30DDTi

Diagnostic Procedure (Cont’d)

EC-151

9

CHECK CRANKSHAFT POSITION SENSOR (TDC)-I

1. Loosen the fixing bolt and remove the crankshaft position sensor (TDC).
2. Visually check the sensor for chipping.

SEF232Z

OK or NG

OK

E

GO TO 10.

NG

E

Replace crankshaft position sensor (TDC).

10

CHECK CRANKSHAFT POSITION SENSOR (TDC)-II

1. Disconnect crankshaft position sensor (TDC) harness connector.
2. Check resistance between crankshaft position sensor (TDC) terminals 1 and 2.

SEF295Z

OK or NG

OK

E

GO TO 11.

NG

E

Replace crankshaft position sensor (TDC).

11

CHECK INTERMITTENT INCIDENT

Refer to “TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT”, EC-78.

E

INSPECTION END

DTC 0407 CRANK POS SEN (TDC)

ZD30DDTi

Diagnostic Procedure (Cont’d)

EC-152