TM 5-3805-293-23-1
0017
Table 1. Transmission Code (0573-03 to 0967-09) Troubleshooting Procedures - Continued.
CDI FMI CODE
TEST OR INSPECTION
CORRECTIVE ACTION
0621-04 Downshift Switch
6. Remove operator's seat (WP
Voltage Below Normal - Con-
0284).
tinued
7. Remove inner panel cover from
left joystick support (WP 0282).
8. Disconnect harness connector P-
C52 (WP 0009, Figure 154) from
left hand joystick J2 (WP 0282).
9. Using digital multimeter, test for
Continuity - Replace cab lower wiring
continuity between harness con-
harness (WP 0266).
nector P-C69 (WP 0009, Figure
Connect harness connector FA-C21
46) terminal 52 and all other ter-
(WP 0009, Figure 124) to transmis-
minals on harness connector P-
sion ECM J2 (WP 0009, Figure 112).
C69 and to machine ground.
Proceed to step 11.
There should be no continuity.
No Continuity - Proceed to step 10.
10. Using digital multimeter, test for
Continuity - Replace cab lower wiring
continuity between harness con-
harness (WP 0266).
nector P-C69 (WP 0009, Figure
Connect harness connector FA-C21
46) terminal 58 and all other ter-
(WP 0009, Figure 124) to transmis-
minals on harness connector P-
sion ECM J2 (WP 0009, Figure 112).
C69 and to machine ground.
Proceed to step 11.
There should be no continuity.
No Continuity - Proceed to Test Step
3.
11. Connect MSD (WP 0006). Select
0621-04 Code Active - Repeat trou-
Trans/Chassis 120M and verify
bleshooting from the beginning of this
0621-04 is active.
diagnostic code.
0621-04 Code Not Active - Trouble-
shooting complete.
Test Step 3. Test Downshift Switch.
1. Disconnect harness connector P-
C48 (WP 0009, Figure 116) from
left joystick J3 (WP 0009, Figure
117).
2. Using digital multimeter, test for
continuity between harness con-
nector P-C52 (WP 0009, Figure
154) terminal 7 and harness con-
nector P-C48 (WP 0009, Figure
117) terminal 3.
0017-72