TM 5-3805-296-23-2
0067
Table 1. 0708 Transmission Downshift Solenoid Valve Diagnostic Codes.
0067
CID FMI
TEST OR INSPECTION
CORRECTIVE ACTION
NOTE
0708-03 Transmission Gear
Actuator Down Solenoid
Always inspect harness connectors that are involved in the circuit. Poor
Voltage 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 Voltage on Downshift
Solenoid Circuit 704.
POSSIBLE CAUSE
Transmission Wiring Harness Shorted.
Chassis Wiring Harness Shorted.
Main Cab Wiring Harness Shorted.
Transmission/Chassis ECM.
Test Step 1. Test for Shorted
Transmission Wiring Harness.
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. Disconnect connector A-C1
(WP 0012, Figure 106)
from connector J-C3
(WP 0012, Figure 101).
4. Using digital multimeter
Continuity Replace transmission
(WP 0540), test for continuity
wiring harness (WP 0266).
between connector AC-C1
Proceed to Test Step 4.
terminal 15 (WP 0012, Figure 106)
No Continuity Proceed to Test
and all other terminals
Step 2.
in connector AC-C1
(WP 0012, Figure 106).