Fault Code Definition

WARNING: This page is about a different car, the 1994 Volvo 960. However, it is still accessible from the selected car via links, so may be relevant.

FAULT CODES

Code

Fault

Repair

1-1-1

No Faults

None

1-1-2

ECU

Replace ECU

1-1-3

Fuel Injectors

⁽¹⁾ Check Injectors, Heated O2 Sensor & Airflow Meter

1-2-1

Mass Airflow Signal

⁽¹⁾ Check Airflow Meter & Main Relay

1-2-3

Coolant Temp. Sensor Signal

⁽¹⁾ Check Sensor

1-3-1

Timing Pick-Up Signal

⁽²⁾

1-3-2

Battery Voltage

⁽²⁾

1-4-3

No Front Knock Sensor Signal

⁽²⁾

2-1-2

Oxygen Sensor Signal

⁽¹⁾ Check Oxygen Sensor

2-1-4

Timing Pick-Up Signal

⁽²⁾

2-2-3

No Idle Valve Signal

⁽²⁾

2-3-1

Lambda Rich/Lean In Part-Load Range

⁽²⁾

2-3-2

Lambda Rich/Lean At Idle

⁽²⁾

2-3-3

Idle Control Not In Range

⁽²⁾

2-4-1

EGR Flow Too Low

⁽²⁾

2-4-3

Throttle Switch Signal Absent Or Faulty

⁽²⁾

3-1-1

Speedometer Signal

⁽²⁾

3-1-4

Camshaft Sensor Signal

⁽²⁾

3-2-2

Airflow Meter Hot Wire

⁽²⁾

4-3-1

EGR Temperature Sensor Absent/Faulty

⁽²⁾

4-3-3

No Rear Knock Sensor Signal

⁽²⁾

5-1-2

Short Term Fuel Trim

⁽²⁾

⁽¹⁾	See SYSTEM/COMPONENT TESTS article in this section.

⁽²⁾	See FAULT CODE TESTING under SELF-DIAGNOSTIC SYSTEM .