Checking wiring and connectors

WARNING: This page is about a different car, the 2004 Volvo S40, 2003 Volvo S40, 2002 Volvo S40, 2001 Volvo S40, and 2000 Volvo S40. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Identifying Ignition OFF

Courtesy of VOLVO CARS OF NORTH AMERICA.

Ignition off
Check the connector for the affected injector. Check for contact resistance and oxidation according to Contact resistance and oxidation .

Check the resistance of the affected injector between terminals #1 and #2. The resistance must be approximately 12 Ω.

Check the signal cable between the affected injector terminal #2 and engine control module (ECM) terminal #59 (ECM-1E), terminal #90 (ECM-1F), terminal #60 (ECM-20) or terminal #89 (ECM-21). Check for an open-circuit according to Open-circuit, permanent faults .

Check the power supply cable between system relay terminal #5 (87) and affected injector terminal #1. Check for an open-circuit according to Open-circuit, permanent faults .

HINT: The voltage must be approximately 12 V between injector terminals #1 and #2 (control module side) for approximately 2 seconds after the ignition is switched on.

Remedy as necessary.

Other information
- To connect the breakout box, see Connecting the breakout box. EMS 2000
- To access or replace the injector, see Replacing the injector(s)
- For information about signals, see Signal specification .
Fig 2: Identifying Injector Terminals
Courtesy of VOLVO CARS OF NORTH AMERICA.

Fig 3: Identifying Ohmmeter
Courtesy of VOLVO CARS OF NORTH AMERICA.

Fig 4: Identifying Fuel Injector
Courtesy of VOLVO CARS OF NORTH AMERICA.

Continue
Refer to Selecting diagnostic trouble code (DTC)