Retrieving Codes

Locate the diagnostic unit and remove its cover. Connect selector cable to socket No. 2. Turn ignition to ON position. Enter control function No. 1 (retrieve codes) by pressing push button one time for at least one second and no more than 3 seconds.
NOTE: Information on control functions No. 2 and 3 appears later in article. To enter control function No. 2, press push button 2 times for at least one second and no more than 3 seconds. To enter control function No. 3, press push button 3 times for at least one second and no more than 3 seconds.
Watch red LED and count number of flashes in 3-flash series. Flash series are separated by 3-second intervals. See Fig 1. Note all codes. Only 3 separate codes can be stored at once. If no codes are stored, LED will flash 1-1-1, indicating fuel system is operating properly.

Fig 1: Counting Red LED Code Flashes for Code 213
Courtesy of VOLVO CARS OF NORTH AMERICA.
If a fault code is received, refer to the FUEL INJECTION FAULT CODES table. Depress push button again and check for additional codes. Depress push button a third time if necessary. If first code repeats, no other codes are present.
Diagnostic system memory is full when 3 codes are present. Those 3 codes must be repaired before further codes can be retrieved.

NOTE: Not all codes listed in FUEL INJECTION FAULT CODES table are used on every vehicle.

FUEL INJECTION FAULT CODES

Code

Fault

Repair

1-1-1

No Faults

N/A

1-1-2

ECU

Replace ECU

1-1-3

Fuel Injectors

Check Injectors, Check Fuel Pressure

1-2-1

Mass Airflow Signal

⁽¹⁾ Check Airflow Meter & ⁽¹⁾ O2 Heater Resistance

1-2-2

Air Temp. Sensor Signal

⁽¹⁾ Check Sensor

1-2-3

Cool. Temp. Sensor Signal

⁽¹⁾ Check Sensor

1-3-1

Ignition System RPM Signal

⁽²⁾

1-3-2

Batt. Voltage

Check Battery, Check Charging System

1-3-3

Throttle Switch (Idle)

⁽¹⁾ Check Throttle Switch

1-5-4

EGR Flow Too High

EGR System

2-1-2

O2 Sensor Signal

Check Fuel Pump Relay, ⁽¹⁾ Check O2 Sensor Heater

2-1-3

Throttle Switch (Full Load)

⁽¹⁾ Check Throttle Switch

2-2-1

Lambda Operation

Check Intake Manifold, ⁽²⁾ Check Fuel Pressure

2-2-2

Main Relay

Check Main Relay

2-2-3

Idle Valve Signal

⁽²⁾

2-3-1

Lambda Adjustment

Check Intake Manifold, ⁽²⁾ Check Fuel Pressure

2-3-2

Lambda Adjustment

Check Intake Manifold, ⁽²⁾ Check Fuel Pressure

2-3-3

Idle Valve (Air Leak)

Check Intake Manifold, ⁽¹⁾ Check Idle Valve

3-1-1

Speedometer Signal

⁽²⁾

3-1-2

Knock/Fuel Enrichment Signal Missing

⁽²⁾

3-2-1

Cold Start Valve

Check Cold Start Valve

3-2-2

Airflow Meter Hot Wire

⁽¹⁾ Check Airflow Meter

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

⁽²⁾	See FAULT CODE TESTING under SELF-DIAGNOSTICS - FUEL INJECTION .