EQUALIZER BAR GP 5A7402 - Caterpillar

Table 1
J1939 Codes and Description Comments
1656-2
Engine Automatic Start Enable Switch : Erratic, Intermittent, or Incorrect The two inputs from the Engine Control Switch (ECS) are in the opposite state.
The code is logged.
Illustration 1 g06119025
For the complete circuit details, refer to the full schematic.
Table 2
Troubleshooting Test Steps Values Results
1. Inspect the Electrical Connectors and the Wiring
A. Turn the main disconnect switch to the OFF position.
B. Thoroughly inspect the connectors. Refer to Troubleshooting, "Electrical Connectors-Inspect" for additional information.
C. Perform a 45 N (10 lb) pull test on the connector wires.
D. Check the harness for abrasions and pinch points.
Connectors and Wiring
Result: The connectors and wiring appear to be OK.
Proceed to Test Step 2.
Result: There is a problem with the connectors and/or wiring.
Repair: Repair