Trouble Code Definition

NOTE: When DTC tests indicate to check a component, see indicated component in I - SYS/COMP TESTS article. For Diagnostic Trouble Code (DTC) illustration symbol identification, see Fig 1 . To identify ECM connector terminals, see WIRING DIAGRAMS article.

TROUBLE CODE IDENTIFICATION

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

32 ⁽⁴⁾

EGR Function

No EGR Operation

HO2S Sensor (Left)

Open/Shorted Circuit/High HO2S Signal

34 ⁽¹⁾

Knock Sensor

Open/Shorted Circuit

35 ⁽⁴⁾

EGR Temperature Sensor

Open/Shorted Circuit

Throttle Position Sensor

Open/Shorted Circuit

45 ⁽⁴⁾

Injector Leak

Leak At Injectors

46 ⁽¹⁾ (With TCS)

Secondary Throttle Position Sensor

Open/Shorted Circuit

51 ⁽⁴⁾

Injector Circuit

Injector Does Not Work

HO2S Sensor (Right)

Open/Shorted Circuit/High HO2S Signal

54 54 ⁽⁵⁾

Automatic Transmission (A/T) Control Signal

Open Signal Transmission Control Unit

55 ⁽¹⁾

No Malfunction Light (MIL).

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 ANTI-LOCK BRAKE SYSTEM article in BRAKE section.

⁽⁴⁾	California models.

⁽⁵⁾	Models with automatic transmission, Serial No. 450021 and later.

Fig 1: Identifying DTC Illustration Symbols

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