TM 5-3805-298-23-1
0099
Table 1. 668 Transmission Control Shift Lever Diagnostic Codes - Continued.
099
CID FMI CODE
TEST OR INSPECTION
CORRECTIVE ACTION
Test Step 7. Test for Open Lower Cab
668-2 Transmission Control
Wiring Harness.
Shift Lever Data Is Erratic,
Intermittent, or Incorrect -
1. Remove instrument cluster for
Continued
access to wiring harness
connectors (WP 0252).
2. Disconnect connector C-C59
(WP 0012, Figure 78) from
transmission shift lever (WP 0012,
Figure 77) connector C.
3. Turn battery disconnect switch and
ignition switch to ON position
(TM 5-3805-298-10).
4. Using digital multimeter
Voltage 18 to 26 V - Replace
(WP 0174), test for voltage
transmission control lever (WP 0305).
between connector C-C59
Proceed to Test Step 9.
(WP 0012, Figure 78) terminal 1
Voltage Less Than 18 V - Replace
and terminal 2 (ground).
lower cab wiring harness (WP 0291).
Proceed to Test Step 9.
Test Step 8. Test for Shorted Lower
Cab Wiring Harness.
1. Remove instrument cluster for
access to wiring harness
connectors (WP 0252).
2. Disconnect connector C-C59
(WP 0012, Figure 78) from
transmission shift lever (WP 0012,
Figure 77) connector C.
3. Using digital multimeter
Continuity - Replace lower cab wiring
(WP 0174), test for continuity
harness (WP 0291). Replace
between connector C-C59
transmission fuse (TM 5-3805-298-10).
(WP 0012, Figure 78) terminal 1
Proceed to Test Step 9.
and terminal 2.
No Continuity - Proceed to step 4.
4. Using digital multimeter
Continuity - Replace lower cab wiring
(WP 0174), test for continuity
harness (WP 0291). Replace
between connector C-C59
transmission fuse (TM 5-3805-298-10).
(WP 0012, Figure 78) terminal 1
Proceed to Test Step 9.
and ground.
No Continuity - Replace transmission
control lever (WP 0305). Replace
transmission fuse (TM 5-3805-298-10).
Proceed to Test Step 9.
0099-8
