volvo Workshop Repair Guides

Volvo Workshop Service and Repair Manuals

Battery and Ground Supply For ECM|Page 3340 > < Voltage Signal|Description and Operation
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Voltage Signal: Testing and Inspection
Battery and Ground Supply For ECM

Engine Control Module

TESTING PROCEDURE:

NOTE: While trouble shooting, always check the wiring, fuses and connectors for good condition and routing.

Fuel Injection, Ignition Control Unit (ECU) And System Relay

1.

Turn ignition OFF.

2.

Access fuel injection ECU by removing the passenger side kick panel and glove compartment.

3.

Check fuel injection ECU ground connections. They should make good contact and fit tight.

Disconnecting ECU Connector

4.

Remove ECU connector by pressing up the latch and folding out the wire cluster.

Battery and Ground Supply For ECM|Page 3340 > < Voltage Signal|Description and Operation