Acura TSX / Honda Accord CL. Manual — part 859
occurred to these parts.
Transmission 8 mm housing bolts are left-hand threads.
REVERSE LOCKOUT SYSTEM
GENERAL TROUBLESHOOTING INFORMATION
How to Troubleshoot Circuits at the ECM
Special Tools Required: Backprobe set 07SAZ-001000A (2 required)
1. Pull back the carpet from the passenger's and driver's side of the center console to expose the ECM.
2. Connect the backprobe adapters (A) to the stacking patch cords (B), and connect the cords to a digital
multimeter (C).
2004 Acura TSX
2004 MANUAL TRANSMISSIONS Overhaul - ASU5 6-Speed
Fig. 3: Connecting The Backprobe Adapters To The Stacking Patch Cords & Connecting The
Cords To A Digital Multimeter
3. Using the wire insulation as a guide for the contoured tip of the backprobe adapter, gently slide the tip
into the connector from the wire side until it touches the end of the wire terminal.
COMPONENT LOCATION INDEX
Fig. 4: Locating Reverse Lockout System Components
SYSTEM DESCRIPTION
2004 Acura TSX
2004 MANUAL TRANSMISSIONS Overhaul - ASU5 6-Speed
At a vehicle speed of 12 mph (20 km/h) or more, a signal from the vehicle speed sensor (VSS) activates the
reverse lockout solenoid, which pushes the select lock cam B into the locked position. As a result, the select
lever cannot rotate to the reverse select position, making it impossible to engage reverse gear. At a vehicle
speed of 9 mph (15 km/h) or less, the signal from the VSS is interrupted which turns off the reverse lockout
solenoid. The select lock return spring pulls the select lock cam B back, enabling the select lever to move freely
so that reverse gear can be selected.
Fig. 5: Reverse Lockout Solenoid Operation
2004 Acura TSX
2004 MANUAL TRANSMISSIONS Overhaul - ASU5 6-Speed
Fig. 6: Reverse Lockout Solenoid Components
CIRCUIT DIAGRAM
2004 Acura TSX
2004 MANUAL TRANSMISSIONS Overhaul - ASU5 6-Speed
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