TM 5-3805-298-23-1
0094
Table 1. 490 Implement Lockout Switch Diagnostic Codes - Continued.
094
CID FMI CODE
TEST OR INSPECTION
CORRECTIVE ACTION
Test Step 4. Test for Open Lower
490-3 Implement Lockout
Cab Ground.
Switch Voltage Is Above
Normal - Continued
1. Using digital multimeter
Resistance 5.0 Ohms or Less -
(WP 0174), measure resistance
Replace transmission ECM (WP 0266).
between connector C-C6
Proceed to Test Step 5.
(WP 0012, Figure 70) terminal 5
Resistance Greater Than 5.0 Ohms -
and ground.
Proceed to step 2.
2. Inspect ground connections
Dirty, Corroded, or Loose - Clean and
(WP 0012, Figure 45) terminal 1
tighten as necessary.
and terminal 2 for dirt, corrosion,
Proceed to Test Step 5.
and tightness.
No Problem Found - Replace lower
cab wiring harness (WP 0291).
Proceed to Test Step 5.
Test Step 5. Verify Malfunction Is
Resolved.
1. Ensure all wiring harness
connectors are connected.
2. Install console instrument panel
(WP 0264).
3. Install transmission ECM cover
(WP 0266).
4. Install left lower cab access panels
(WP 0347).
5. Using MSD, check for active
Diagnostic Code 490-3 Implement
diagnostic codes (WP 0008).
Lockout Switch Voltage Is Above
Normal Becomes Inactive -
Troubleshooting complete.
Diagnostic Code 490-3 Implement
Lockout Switch Voltage Is Above
Normal Remains Active - Repeat
troubleshooting from the beginning.
0094-4