TM 5-3805-296-23-2
0067
Table 1. 0708 Transmission Downshift Solenoid Valve Diagnostic Codes Continued.
067
CID FMI
TEST OR INSPECTION
CORRECTIVE ACTION
NOTE
0708-06 Transmission Gear
Actuator Down Solenoid
Always inspect harness connectors that are involved in the circuit. Poor
Current Above Normal
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 the connection is
found, correct the problem and verify that this malfunction or diagnostic
code is active before performing this procedure.
Perform open or short-circuit test at each harness connection to identify
the correct harness to replace.
Tag all wiring harnesses to aid in installation.
Perform this test only if condition is active.
DIAGNOSTIC CODE SET CONDITION
Transmission/Chassis ECM Detects Above Normal Current on Downshift
Solenoid Circuit 704.
POSSIBLE CAUSE
Downshift Solenoid.
Transmission Wiring Harness Shorted.
Chassis Wiring Harness Shorted.
Main Cab Wiring Harness Shorted.
Transmission/Chassis ECM.
Test Step 1. Test for Shorted
Downshift Solenoid.
1. Turn ignition switch and battery
disconnect switch to OFF position
(TM 5-3805-296-10).
2. Disconnect connector A-C8
(WP 0012, Figure 112) from
downshift solenoid connector
(WP 0012, Figure 111).
3. Turn battery disconnect switch and
ignition switch to ON position
(TM 5-3805-296-10).
4. At MSD, check for active
708-5 Transmission Gear Actuator
diagnostic code 708-6
Down Solenoid Current Below
Transmission Gear Actuator Down
Normal Becomes Active Replace
Solenoid Current Above Normal
downshift solenoid (WP 0274).
(WP 0008).
Proceed to Test Step 5.
708-6 Transmission Gear Actuator
Down Solenoid Current Above
Normal Remains Active Proceed to
Test Step 2.
0067-7
