TM 5-3805-298-23-1
0082
Table 1. 168 Powertrain Power Supply Diagnostic Codes - Continued.
082
CID FMI CODE
TEST OR INSPECTION
CORRECTIVE ACTION
168-4 Powertrain Power
Test Step 11. Test Voltage of Battery
Supply Voltage Is Below
Supply Circuits at Transmission
Normal or Shorted Low -
ECM.
Continued
1. Connect connector EN-C2
(WP 0012, Figure 12) to connector
C-C18 (WP 0012, Figure 13).
2. Turn battery disconnect switch and
ignition switch to ON position
(TM 5-3805-298-10).
3. Using digital multimeter
Voltage 18 to 26 V - Proceed to step 4.
(WP 0174), test for voltage
Voltage Less Than 18 V - Replace
between connector C-C12
lower cab wiring harness (WP 0291).
(WP 0012, Figure 26) terminal 31
Proceed to Test Step 12.
and ground.
4. Using digital multimeter
Voltage 18 to 26 V - Replace
(WP 0174), test for voltage
transmission ECM (WP 0266).
between connector C-C12
Proceed to Test Step 12.
(WP 0012, Figure 26) terminal 39
Voltage Less Than 18 V - Replace
and ground.
lower cab wiring harness (WP 0291).
Proceed to Test Step 12.
Test Step 12. Verify Malfunction Is
Resolved.
1. Ensure all wiring harness
connectors are connected.
2. Install left lower cab access panels
(WP 0347).
3. Install right lower cab access
panels (WP 0347).
4. Install left engine access panel
(WP 0350).
5. Start engine (TM 5-3805-298-10).
Diagnostic Code 168-4 Powertrain
Using MSD, check for active
Power Supply Voltage Is Below
diagnostic codes (WP 0008).
Normal Becomes Inactive -
Troubleshooting complete.
Diagnostic Code 168-4 Powertrain
Power Supply Voltage Is Below
Normal Remains Active - Repeat
troubleshooting from the beginning.
END OF WORK PACKAGE
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