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
Test Step 4. Verify Malfunction is
0708-03 Transmission Gear
Resolved.
Actuator Down Solenoid
1. Ensure all harness connectors are
Voltage Above Normal
connected.
Continued
2. Turn battery disconnect switch and
ignition switch to ON position
(TM 5-3805-296-10).
3. At MSD, check for active
708-3 Transmission Gear Actuator
Down Solenoid Voltage Above
diagnostic codes (WP 0008).
Normal Becomes Inactive
Troubleshooting complete.
708-3 Transmission Gear Actuator
Down Solenoid Voltage Above
Normal Remains Active Repeat
troubleshooting from the beginning.
NOTE
0708-05 Transmission Gear
Actuator Down Solenoid
Always inspect harness connectors that are involved in the circuit. Poor
Current Below 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 Below Normal Current on Downshift
Solenoid Circuit 704.
POSSIBLE CAUSE
Downshift Solenoid.
Transmission Wiring Harness High Resistance or Open.
Chassis Wiring Harness High Resistance or Open.
Main Cab Wiring Harness High Resistance or Open.
Transmission/Chassis ECM.
Test Step 1. Test for Open 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).
0067-4
