Trouble Code Definition

NOTE: When DTC tests indicate to check a component, see indicated component I - SYSTEM/COMPONENT TESTS article. For Diagnostic Trouble Code (DTC) illustration symbol identification, see Figure . To identify ECM connector terminals, see WIRING DIAGRAMS section.

DIAGNOSTIC TROUBLE CODE (DTC) IDENTIFICATION CHART

Code

System Affected

Probable Cause

11 ⁽¹⁾

Camshaft/Crankshaft Position Sensor

⁽²⁾ No Crank Signal

Mass Airflow Sensor Circuit

Open/Shorted Circuit

Engine Coolant Temperature Sensor

Open/Shorted Circuit

Vehicle Speed Sensor (VSS)

No VSS Signal

16 ⁽¹⁾

Traction Control System

⁽³⁾ Open/Shorted Circuit

21 ⁽¹⁾

Ignition Signal Circuit

⁽²⁾ Open/Shorted Circuit

ECM

Signals Not Normal

EGR Function

No EGR Operation

HO2S Sensor (Left)

Open/Shorted Circuit/High HO2S Signal

34 ⁽¹⁾

Knock Sensor

Open/Shorted Circuit

EGR Temperature Sensor

Open/Shorted Circuit

Throttle Position Sensor

Open/Shorted Circuit

Injector Leak

Leak At Injectors

46 (W/ TCS) ⁽¹⁾

Second. Throttle Position Sensor

Open/Shorted Circuit

Injector Circuit

Injector Does Not Work

HO2S Sensor (Right)

Open/Shorted Circuit/ High HO2S Signal

54 ⁽¹⁾

A/T Signal

Open Signal Transmission Control Unit

55 ⁽¹⁾

No Malfunction

Normal Condition

⁽¹⁾	Trouble code will not activate Malfunction Indicator Light (MIL).

⁽²⁾	If Codes 11 and 21 are present at same time, check items causing a malfunction of camshaft/crankshaft position sensor circuit first.

⁽³⁾	See appropriate ANTI-LOCK BRAKE SYSTEM article in BRAKES section.

Fig 1: Identifying DTC Illustration Symbols (Q45)

Courtesy of NISSAN MOTOR CO., U.S.A.