Acura TSX / Honda Accord CL. Manual — part 856

Fig. 3: Measuring The Voltage Between Shift Lock Solenoid Connector Terminal No. 1 &
Body Ground

8. Shift to the P position, and press the brake pedal. Do not press the accelerator.

9. Measure the voltage between shift lock solenoid connector terminals No. 1 and No. 2 while pressing the

brake pedal.

Is there battery voltage?

YES: Check the shift lock mechanism. If the mechanism is OK, replace the shift lock
solenoid (see Shift Lock Solenoid Replacement ).

NO: Check for poor connection or loose E2 terminal at the PCM, and check for an open in
the wire between PCM connector terminal E2 and shift lock solenoid connector. If the
connection and wire are OK, substitute a known-good PCM and recheck.

2004 Acura TSX

2004 AUTOMATIC TRANSMISSIONS A/T Interlock System - TSX

Fig. 4: Measuring The Voltage Between Shift Lock Solenoid Connector Terminals No. 1 &
No. 2

KEY INTERLOCK SYSTEM CIRCUIT TROUBLESHOOTING

SRS components are located in this area. Review the SRS components precautions and procedure (see AIR
BAG RESTRAINT SYSTEMS ) before you troubleshoot.

1. Turn the ignition switch to ACC (I). The shift lever must be in the P position.

2. Disconnect the steering lock assembly connector.

3. Check if the ignition key can be moved to LOCK (0) position, and remove the key from the cylinder.

Is the ignition key able to move to the LOCK (0) position, and then removed?

YES: Go to step 4.

2004 Acura TSX

2004 AUTOMATIC TRANSMISSIONS A/T Interlock System - TSX

NO: Replace the ignition key cylinder/steering lock assembly (see STEERING LOCK
REPLACEMENT ).

4. Turn the ignition switch to ACC (I) or ON (II), and shift to the N position.

5. Check the voltage between the No. 4 terminal of the steering lock assembly connector and body ground.

Is there battery voltage?

YES: Go to step 6.

NO: Check for an open in WHT/RED wire between the multiplex integrated control unit and
the steering lock assembly connector. If the wire is OK, substitute a known-good multiplex
integrated control unit and recheck.

2004 Acura TSX

2004 AUTOMATIC TRANSMISSIONS A/T Interlock System - TSX

Fig. 5: Checking Voltage Between The No. 4 Terminal Of The Steering Lock Assembly
Connector & Body Ground

6. Turn the ignition switch to ACC (I), and shift to the P position.

7. Remove the center console cover (see CENTER CONSOLE REMOVAL/INSTALLATION ).

8. Disconnect transmission gear selection switch/park pin switch connector.

9. Check for continuity between transmission gear selection switch/park pin switch connector terminals No.

1 and No. 4 when shift lever in the P position, and when shift lever shift out of the P position.

Is there continuity when shift lever in any position other than P and no continuity when shift
lever in P?

2004 Acura TSX

2004 AUTOMATIC TRANSMISSIONS A/T Interlock System - TSX