Acura TSX / Honda Accord CL. Manual - part 126

Fig. 13: Disconnecting The 3P Connector From The Key Cylinder Switch

3. Check for continuity between the terminals.

There should be continuity between the No. 2 and No. 3 terminals when the door key cylinder
switch is in LOCK position.

There should be no continuity between the No. 2 and No. 3 terminals when the door key cylinder
switch is in the neutral or UNLOCK position.

There should be continuity between the No. 1 and No. 2 terminals when the door key cylinder
switch is in UNLOCK position.

There should be no continuity between the No. 1 and No. 2 terminals when the door key cylinder
switch is in the neutral or LOCK position.

4. If the continuity is not as specified, replace the door key cylinder assembly (see FRONT DOOR

OUTER HANDLE REPLACEMENT ).

CONTROL UNIT INPUT TEST

1. Before testing the keyless entry/security control functions, troubleshoot the multiplex integrated control

system. (see MULTIPLEX INTEGRATED CONTROL UNIT INPUT TEST ).

Multiplex Integrated Control Unit:

2. Remove the left kick panel (see TRIM REMOVAL/INSTALLATION - DOOR AREA ).

3. Disconnect the under-dash fuse/relay box connectors.

NOTE:

All connectors are wire side of female terminals.

2004 Acura TSX

2004 ACCESSORIES & EQUIPMENT Keyless Entry/Security Alarm System - TSX

Fig. 14: Identifying Connector Terminals

4. Inspect the connector and socket terminals to be sure they are all making good contact.

If the terminals are bent, loose or corroded, repair them as necessary, and recheck the system.

If the terminals look OK, go to step 5.

5. With the connectors still disconnected, make these input tests at the connectors. See Fig. 15 .

If any test indicates a problem, find and correct the cause, then recheck the system.

If the input tests prove OK, go to step 6.

2004 Acura TSX

2004 ACCESSORIES & EQUIPMENT Keyless Entry/Security Alarm System - TSX

Fig. 15: Multiplex Integrated Control Unit Input Test (Disconnected)

6. Reconnect all connectors to the under-dash fuse/relay box, and make these input tests at the appropriate

connectors on the under-dash fuse/relay box. See Fig. 16 and Fig. 17 .

If any test indicates a problem, find and correct the cause, then recheck the system.

If all the input tests prove OK, go to step 7.

2004 Acura TSX

2004 ACCESSORIES & EQUIPMENT Keyless Entry/Security Alarm System - TSX

Fig. 16: Multiplex Integrated Control Unit Input Test (1 Of 2 - Connected)

2004 Acura TSX

2004 ACCESSORIES & EQUIPMENT Keyless Entry/Security Alarm System - TSX