Table 1. Transmission Code (1326-02 to 1408-13) Troubleshooting Procedures - Continued.
CDI FMI CODE
TEST OR INSPECTION
1408-13 Transmission Sole-
ECM will log a diagnostic code and a
warning will appear on the messenger
while the diagnostic code is Active.
N OT E
Always inspect the harness connectorsthat 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 a
connection is found, correct the problem and verify that this diagnostic
code is Active before performing this procedure.
Perform open or short circuit test ateach harness connection to identify
correct harness to replace.
Perform this test only if condition is Active.
Test Step 1. Check for Other Codes.
Trans/chassis 120M and verify
1408-13 is active.
Only Code 1408-13 Active - Proceed
2. Check for Active code 1408-03,
to Test Step 2.
1408-05, or 1408-06 in Trans/
Code 1408-03, 1408-05, or 1408-06
Active - Troubleshoot lower code first
Test Step 2. Calibrate Transmission
1. Perform Powertrain Clutch Sys-
One or More Pressures Remain
tem Pressure Test (WP 0043).
Below Specified Range - Replace
clutch modulating valve for affected
gear (WP 0155).
Pressure Within Specified Range -
Proceed to step 2.
2. Perform Fill Time For The Trans-
Malfunction Still Present - Replace
mission Clutch Calibrated (WP
transmission (WP 0142).
1408-13 Code Not Active - Trouble-
END OF WORK PACKAGE