STARTING AID GP-ETHER 8W8366 - Caterpillar

Illustration 3 g01779914
Location of the components for the exhaust temperature module
(1) ECM junction box
(2) Exhaust temperature module Test Step 1. Inspect the Electrical Connectors and the Wiring
Set the engine control switch to the OFF/RESET position. Remove the electrical power from the engine.
Illustration 4 g01779933
Locations of the connectors for the CAN data link at the ECM junction box (typical left side engine view)
(3) J1/P1 ECM
(4) Control harness connectors
Thoroughly inspect the condition of connectors for exhaust temperature module (2). Also, thoroughly inspect the condition of ECM connectors (3) and control harness connectors (4). Refer to Troubleshooting, "Electrical Connectors - Inspect".
Illustration 5 g01391850
Terminal locations at the P1 ECM connectors for the CAN data link
(34) CAN data link −
(42) Shield
(50) CAN data link +
Illustration 6 g01737613
Terminal locations at the control harness connector that are for the CAN data link
(Terminal h) CAN shield
(Terminal i) CAN data link +
(Terminal j) CAN data link −
Illustration 7 g01779893
Terminal locations at the connector for the exhaust temperature module
(Terminal 5) CAN shield
(Terminal 6) Keyswitch
(Terminal 7) −Battery
(Terminal 8) CAN data link +
(Terminal 9) CAN data link −
Illustration 8 g01737636
Terminal locations on the engine interface connector at the engine junction box for the CAN data link
(Terminal 35) CAN data link +
(Terminal 36) CAN data link −
(Terminal 38) CAN shield
Illustration 9 g01737633
Terminal locations on the interconnect harness connector at the engine junction box for the CAN data link
(Terminal p) CAN data link −
(Terminal r) CAN data link +
(Terminal s) CAN shield
Perform a 45 N (10 lb) pull test on each of the wires in the circuit for the NOX sensor.
Check the torque of the allen head screws for each of the ECM connectors. Refer to Troubleshooting, "Electrical Connectors - Inspect" for the correct torque values.
Check the harness and the wiring for abrasion and for pinch points from the battery to the junction box. Check that the fuses for the circuit are not blown. Expected Result:All of the connectors, pins, and sockets are connected properly. The connectors and the wiring do not have corrosion, abrasion, or pinch points.Results:
OK - The components are in good repair with proper connections. Proceed to Test Step 2.
Not OK - The components are not in good repair and/or at least one connection is improper.Repair: Perform the necessary repairs and/or replace parts, if necessary. Ensure that all of the seals are properly installed. Ensure that the connectors are properly engaged. Verify that the repair has eliminated the original problem.STOPTest Step 2. Check for Diagnostic Codes
Establish communication between the Caterpillar Electronic Technician (ET) and the ECM.
Look for the following diagnostic codes:
1489-19
1490-19
1491-19
1492-19
2857-9
1531-19 through 1546-19Expected Result:There is not an active diagnostic code for the exhaust temperature module at this time.Results:
OK - There is not an active diagnostic code for the exhaust temperature module.Repair: There does not seem to be an electrical problem with the exhaust