Nissan 200SX S13 silhouetteS13

TROUBLE DIAGNOSES — Self-diagnosis — Mode V (Cont'd) DECODING CHART

EF & EC-76flowchart

Self-diagnosis — Mode V (Cont'd) DECODING CHART

Display code | Malfunctioning circuit or parts | Control unit shows a malfunction signal when the following conditions are detected. (Compare with Self-diagnosis —Mode III.)

CRANK ANGLE SENSOR

RED L.E.D. ON period (repeating)Crank angle sensor malfunction display
3.2sec
OFF period (between ON pulses)Crank angle sensor malfunction display
1.6sec

Crank Angle Sensor Decoding Chart

Cause

Display code: RED L.E.D. ON 3.2 sec / OFF 1.6 sec pattern (Unit: sec). ON: 3.2, 3.2, 3.2; OFF: 1.6, 1.6, 1.6, 1.6, 1.6

Fix

Malfunction of crank angle sensor circuit

Cause

Malfunction of crank angle sensor circuit

Fix

The 1° or 180° signal is momentarily missing, or, multiple, momentary noise signals enter.

Cause

The 1° or 180° signal is momentarily missing, or, multiple, momentary noise signals enter.

Fix

REAL-TIME DIAGNOSTIC INSPECTION See page EF & EC-77.

AIR FLOW METER

GREEN L.E.D. ON period (repeating)Air flow meter malfunction display
3.2sec
OFF sub-period 1Air flow meter malfunction display
1.6sec
OFF sub-period 2 (short)Air flow meter malfunction display
0.4sec
OFF sub-period 3 (short)Air flow meter malfunction display
0.6sec

Air Flow Meter Decoding Chart

Cause

Display code: GREEN L.E.D. ON 3.2 sec / OFF pattern (Unit: sec). ON: 3.2, 3.2, 3.2; OFF segments: 1.6, 0.4, 0.6 repeating

Fix

Malfunction of air flow meter circuit

Cause

Malfunction of air flow meter circuit

Fix

Abnormal, momentary increase in air flow meter output signal

Cause

Abnormal, momentary increase in air flow meter output signal

Fix

REAL-TIME DIAGNOSTIC INSPECTION See page EF & EC-77.

IGNITION SIGNAL

GREEN L.E.D. ON period (repeating)Ignition signal malfunction display
3.2sec
OFF sub-period 1Ignition signal malfunction display
1.8sec
OFF sub-period 2 (short)Ignition signal malfunction display
0.2sec

Ignition Signal Decoding Chart

Cause

Display code: GREEN L.E.D. ON 3.2 sec / OFF pattern (Unit: sec). ON: 3.2, 3.2, 3.2; OFF segments: 1.8, 0.2 repeating

Fix

Malfunction of ignition signal

Cause

Malfunction of ignition signal

Fix

Signal from the primary ignition coil momentarily drops off.

Cause

Signal from the primary ignition coil momentarily drops off.

Fix

REAL-TIME DIAGNOSTIC INSPECTION See page EF & EC-77.

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