TM 5-3805-296-23-1
0024
Table 1. 0168 System Voltage Diagnostic Codes.
0024
CID FMI
TEST OR INSPECTION
CORRECTIVE ACTION
NOTE
0168-00 Electrical System
Voltage High
Always inspect harness connectors that are involved in the circuit. Poor
connections can often be the cause of a problem in an electrical circuit.
Verify that all connections in the circuit are clean and secure and that all
connections are in good condition. If a problem with the connection is
found, correct the problem and verify that this malfunction or diagnostic
code is active before performing this procedure.
Perform open or short-circuit test at each harness connection to identify
the correct harness to replace.
Tag all wiring harnesses to aid in installation.
Perform this test only if condition is active with engine running.
DIAGNOSTIC CODE SET CONDITION
Engine ECM Detects Battery Voltage is Above 32 VDC.
POSSIBLE CAUSE
Improper Battery Installation.
Charging System.
Test Step 1. Verify Proper Battery
Installation.
Batteries Installed Properly
Verify batteries are installed properly
(WP 0306).
Proceed to Test Step 2.
Batteries Installed Improperly
Properly install batteries (WP 0306).
Proceed to Test Step 3.
Test Step 2. Test Charging System.
Perform charging system testing
Alternator Voltage Too High
(WP 0169).
Replace alternator (WP 0246).
Proceed to Test Step 3.
Test Step 3. Verify Malfunction is
Resolved.
1. Ensure all harness connectors are
connected.
2. Start engine (TM 5-3805-296-10).
3. At MSD, check for active
168-0 Electrical System Voltage High
diagnostic codes (WP 0008).
Becomes Inactive Troubleshooting
complete.
168-0 Electrical System Voltage High
Remains Active Repeat
troubleshooting from the beginning.
