TM 5-3805-298-23-1
0056
Table 1. 253 Personality Module Diagnostic Codes.
0056
CID FMI CODE
TEST OR INSPECTION
CORRECTIVE ACTION
NOTE
253-2 Personality Module
Data Is Erratic, Intermittent,
Perform this test only if condition is active.
or Incorrect
DIAGNOSTIC CODE SET CONDITION
Engine electronic control module (ECM) detects incorrect engine software.
POSSIBLE CAUSE
Flash file in the ECM is incorrect.
Test Step 1. Check for Active
Diagnostic Codes.
Connect MSD, select C6.6 924
Diagnostic Code 253-2 Active -
(WP 0008), and check for active
Proceed to Test Step 2.
diagnostic codes (WP 0008).
Diagnostic Code 253-2 Not Active -
Troubleshooting is complete.
Test Step 2. Program Engine ECM
with Correct Software.
1. Program engine ECM (WP 0011).
Program engine ECM with correct
engine software (WP 0011).
Proceed to step 2.
2. Turn ignition switch to the OFF
position for at least 30 seconds
(TM 5-3805-298-10).
3. Turn ignition switch to the ON
position (TM 5-3805-298-10).
4. Using MSD, select C6.6 924 and
Diagnostic Code 253-2 Personality
check for active diagnostic codes
Module Data is Erratic, Intermittent,
or Incorrect Becomes Inactive -
Troubleshooting complete.
Diagnostic Code 253-2 Personality
Module Data is Erratic, Intermittent,
or Incorrect Remains Active -
Replace engine ECM
(WP 0265).
Troubleshooting complete.
END OF WORK PACKAGE
