ENGINE BATTERY VOLTAGE CIRCUITS TROUBLESHOOTING
THIS WORK PACKAGE COVERS
Error Code 1434 - Unswitched Battery Supply Circuit
Driver Circuit Failure
Error Code 1441 - Unswitched Battery Supply Circuit
Error Code 1596 - Voltage Monitor, High Voltage Fail-
Error Code 1442 - Unswitched Battery Supply Circuit
Tools and Special Tools
Test Lead, Male (Item 124, WP 0289 00)
Current Supply (A34738.0200) (WP 0048 00-31)
Refer to WP 0004 00 for additional troubleshooting guidance, information, and illustrations that
locate critical components.
Refer also to illustrations at end of work package for component location.
Table 1. Error Code 1434 - Unswitched Battery
Supply Circuit Failure Troubleshooting Procedures.
TEST OR INSPECTION
Error Code 1434 - Unswitched Battery Supply
Use test lead, male - part number 3822758 (Item 122,
WP 0289 00-17)
and test lead, female
- part number
3822917 (Item 124, WP 0289 00-17) to test the OEM
1. Check condition and charge of a. If the battery voltage of any
one battery drops below 6V
batteries. Check the voltage of
when cranking, service,
each battery while cranking the
charge, or replace battery.
b. Clean battery connections.
2. Ensure circuit breakers F4 and Reset circuit breakers as required.
F5 are not tripped.