E0196-11-Grid Heater Output Unidentified Failure Code (B.80.A.91.84 - G.30.B.46) - New Holland CX720 Repair Manual

E0196-11-Grid Heater output Unidentified Failure Code (B.80.A.91.84
- G.30.B.46)
CX720 Series 1282 - 1347, CX720 Series 1238 - 1281, CX720 Series 1206 - 1237, CX740 Series 1282 - 1347, CX740 Series 1238 - 1281, CX740 Series
1206 - 1237, CX760 Series 1282 - 1347, CX760 Series 1238 - 1281, CX760 Series 1206 - 1237, CX780 Series 1282 - 1347, CX780 Series 1238 - 1281,
CX780 Series 1206 - 1237, CX820 Series 1282 - 1347, CX820 Series 1238 - 1281, CX820 Series 1206 - 1237
E0196-11 - Grid Heater output Unidentified Failure Code
NOTE: This troubleshooting chart is for CX 720, CX 740, CX 760, CX 780 and CX 820 combines with 7.5L mechanical
governor engines only.
Cause:
The grid heater output circuit is open, or shorted to ground.
Possible failure modes:
1. Supply wiring damaged.
2. Bad relay and/or indicator light.
3. Controller internal failure (internal regulator failure).
Solution:
1. Enter the InfoView monitor - "Diagnose info" screen.
Select "Engine" sub menu.
Select "Grid Heater output" and select the "Status" screen. Press the "Enter" key to manually power the circuit.
The status screen should indicate "OK" if the circuit is working properly.
A. If the status screen indicates "Error", the circuit is open or shorted to ground. Continue with Step 2.
B. If the status screen indicates "OK", the circuit is working properly. Continue with step 14.
2. Key off. Disconnect the grid heater relay connector X211. Use a multimeter to check the resistance of the grid
heater relay coil. The proper resistance is 2 - 6 ohms.
A. If out of specification, replace the relay.
B. If the coil is within specification, continue with step 3.
3. Use a multimeter to check for continuity between connector X211 pin 2 and chassis ground.
A. If there is continuity to ground, continue with Step 4.
B. If there is no continuity to ground, there is an open circuit in the engine (EN) harness in wire 822 black
between the grid heater relay K37 and engine ground 5 . Locate the open and repair.
4. Disconnect connector X004 on the side of the cab to isolate the cold start indicator E36 from the circuit. Use a
multimeter to check for continuity between connector X211 pin 1 and chassis ground.
A. If there is continuity to ground, continue with Step 5.
B. If no continuity to ground is found, continue with Step 8.
5. Disconnect connector X010 . Use a multimeter to check for continuity between connector X010 pin 20 and
chassis ground.
A. If there is continuity to ground, continue with step 6.
B. If there is no continuity to ground, continue with step 7.
6. Disconnect connector X005 on the side of the cab. Use a multimeter to check for continuity between connector
X005 pin 20 and chassis ground.
A. If there is no continuity to ground, a short to ground is located in the main frame (MF) harness between
connector X010 and connector X005 wire 839 white. Locate the short and repair.
POWER PRODUCTION - STARTING SYSTEM
2 4/7/2006
B.80.A / 14