dodge Workshop Repair Guides

Dodge Workshop Service and Repair Manuals

Component Tests and General Diagnostics|Page 1126 > < Component Tests and General Diagnostics|Page 1124
Page 3
background image

Continuity

Should not exist.

Battery Voltage And Back-up Circuit

KEY "OFF" POWER CIRCUIT
1. Using a volt meter, check the voltage between ECU harness terminal 103 and ground.

Voltage

System voltage.

2. Disconnect the negative battery cable and the ECU connector.
3. Using an ohm meter, check for continuity between the positive battery terminal and ECU harness terminal 103.

Continuity

Should exist.

4. Using an ohm meter, check for continuity between chassis ground (not the negative battery terminal) and ECU harness terminal 103.

Continuity

Should not exist.

Ground Supply Circuit

GROUND CIRCUIT
1. Disconnect the ECU connector.

Component Tests and General Diagnostics|Page 1126 > < Component Tests and General Diagnostics|Page 1124