SEAL-DOMED 6P5207 - Caterpillar

Illustration 2 g01205045
Battery terminals on the service tool connectors
Refer to Illustration 2. Measure the battery voltage at the service tool connector.Expected Result:The voltage measurement is not within two volts of the battery voltage.Results:
The voltage measurement is not within two volts of the battery voltage. The voltage at the service tool connector is low. - Repair: There is a problem with the vehicle wiring between the service tool connector and the battery. Determine the cause of the low voltage. Repair the wiring, when possible. Replace parts, if necessary. Continue with this procedure when the power indicator on the communications adapter is illuminated.When the power indicator on the communications adapter is illuminated, attempt to establish communication between Cat ET and the ECM. If communication is established, the problem is resolved.If communication is not established, refer to Troubleshooting, "Data Link - Test".STOP
The voltage at the service tool connector is within two volts of the battery voltage. - Repair: Attempt to establish communication between Cat ET and the engine ECM. If communication is established, the problem is resolved.If communication is not established, refer to Troubleshooting, "Data Link - Test".STOPTest Step 4. Perform the Wiggle Test for the Battery CircuitInterview