TRANSMISSION TESTS, INSPECTIONS, AND ADJUSTMENTS - CONTINUED
TRANSMISSION CONTROL (SHIFT LEVER) TEST - CONTINUED
If status on MSD screen is DATA FAULT in either particular position or all positions, proceed to step 13.
Verify shift lever remote F/N/R harness.
Ensure cab harness 4-pin receptacle connector CN-C50 is connected to shifter 4-pin plug (WP 0081 00).
Disconnect 6-pin connector that goes to remote F/N/R switch assembly.
On cab harness connector CN-C23, place jumper wire from pin 1 202 BK to pin 4 G787 GN.
Verify MSD shows "F1" as desired gear.
Move jumper wire connection from pin 1 202 BK to pin 6 G788 YL.
Verify MSD shows "R1" as desired gear.
Move jumper wire connection from pin 1 202 BK to pin 5 P916 OR.
Verify MSD shows "N1" as desired gear.
Expected Results. As each jumper pin combination is checked, MSD screen displays corresponding gear and direc-
If status of shift lever position changes properly, harness from remote F/N/R switch assembly to ECM is
working correctly. Replace remote F/N/R switch assembly (WP 0188 00).
If status on MSD screen is DATA FAULT no matter which wire is jumped to pin 1, common signal pin 1
202 BK may have lost connection to machine ground. Wiring harness may have failed. Replace wiring
harness in question (WP 0169 00 thru WP 0175 00).
If status on MSD screen is DATA FAULT when a particular wire is jumped to pin 1, wiring harness may
have failed. Replace wiring harness in question (WP 0169 00 thru WP 0175 00).