Shift Interlock Systems: Overview Honda Odyssey II

Locating Shift Interlock System Components. Scheme 449

A/T Interlock System Circuit Diagram. Scheme 450

Scheme 451

Scheme 452

Scheme 453

Scheme 454

Scheme 455

Scheme 456

Scheme 457

Scheme 458

Scheme 459

Scheme 460

1. Press the brake pedal. Are the brake lights ON? YES - Go to step 2. NO - Repair faulty brake light circuit.
2. Turn the ignition switch ON (II), and shift to P position.
3. Press the brake pedal, and release the accelerator pedal.
4. Measure ILU voltage between these terminals and body ground: 1999-2000 models: Between A28 terminal and ground. 2001 model: Between E15 terminal and ground. (Scheme 451): Measuring Voltage Between A28 Terminal & Ground (1999-2000 Models) (Scheme 452): Measuring Voltage Between E15 Terminal & Ground (2001 Model) Is there battery voltage? YES - Check for an open in the wire between the A28 terminal (1999-2000 models) or E15 terminal (2001 model) and the multiplex control unit (driver's), and check for loose terminal fit in the multiplex control unit (driver's) connectors. If necessary, substitute a known-good multiplex control unit (driver's) and recheck. NO - Go to step 5.
5. Turn the ignition switch OFF.
6. Disconnect these connectors from the PCM: 1999-2000 models: A (32P) and B (25P) connectors. 2001 model: A (31P) and E (31P) connectors.
7. Press the brake pedals and measure the voltage between these terminals. 1999-2000 models: Between the A32 and B20 or B22 terminals. 2001 model: Between the E9 and A25 or A26 terminals. (Scheme 453): Measuring Voltage Between A32 & B20 Or B22 Terminals (1999-2000 Models) (Scheme 454): Measuring Voltage Between E9 & A25 Or A26 Terminals (2001 Model) Is there battery voltage? YES - Release the brake pedal and go to step 8. NO - Repair open in the wire between the A32 terminal (1999-2000 models) or E9 terminal (2001 model) and the brake pedal position switch (brake switch).
8. Reconnect the disconnected connectors to the PCM.
9. Turn the ignition switch ON (II).
10. Measure the voltage between these terminals: 1999-2000 models: Between the C27 and B20 or B 22 terminals. 2001 model: Between the A15 and A25 or A26 terminals. (Scheme 455): Measuring Voltage Between C17 & B20 Or B22 Terminals (1999-2000 Models) (Scheme 456): Measuring Voltage Between A15 & A25 Or A26 Terminals (2001 Model) Is there about 0.5 V (throttle fully closed)? YES - Go to step 15. NO - Go to step 11.
11. Turn the ignition switch OFF.
12. Disconnect the TPS connector.
13. Turn the ignition switch ON (II).
14. Measure the voltage between the No. 1 and No. 3 terminals of the TPS connector. (Scheme 457): Measuring Voltage Between No. 1 No. 3 Terminals Of TPS Connector Is there about 5 V? YES - Check for an open or short in the wire between the C27 terminal and the TPS. If the wire is OK, replace the TPS. NO - Go to step 15.
15. Turn the ignition switch OFF, and disconnect the PCM C (31P) connector. Check for continuity between the No. 1 terminal of the TPS connector and body ground, and between the No. 3 terminal of the TPS connector and body ground. (Scheme 458): Checking For Continuity Between No. 1 Terminal Of TPS Connector & Body Ground, & Between No. 3 Terminal Of TPS Connector & Body Ground Is there continuity? YES - Check for a short to ground between the No. 1 or No. 3 terminal of the TPS connector and ground. If the wire is OK, replace the PCM. NO - Go to step 16.
16. Disconnect the shift lock solenoid connector.
17. Check for continuity between the No. 2 terminal of the shift lock solenoid connector and the No. 22 terminal of the multiplex control unit (driver's) 22P connector B. (Scheme 459): Checking For Continuity Between No. 2 Terminal Of Shift Lock Solenoid Connector & No. 22 Terminal Of Multiplex Control Unit (Driver's) 22P Connector B Is there continuity? YES - Go to step 18. NO - Repair open in the wire between the No. 22 terminal of the multiplex control unit (driver's) 22P connector and the shift lock solenoid.
18. Turn the ignition switch ON (II).
19. Measure the voltage between the No. 1 terminal of the shift lock solenoid connector and body ground. (Scheme 460): Measuring Voltage Between No. 1 Terminal Of Shift Lock Solenoid Connector & Body Ground Is there battery voltage? YES - Go to step 20. NO - Check for blown No. 9 (10A) fuse in the driver's under-dash fuse/relay box. If the fuse is OK, repair open or short in the wire between the No. 1 terminal of the shift lock solenoid and the driver's under-dash fuse/relay box.
20. Connect the No. 1 terminal of the shift lock solenoid connector to the battery positive terminal, and connect the No. 2 terminal to the battery negative terminal.
21. Check the shift lock solenoid operation. Does the shift lock solenoid operate properly? YES - Check for a loose multiplex control unit (driver's) connector. If necessary, substitute a known-good multiplex control unit (driver's) and recheck. NO - Replace the shift lock solenoid (see «SHIFT LOCK SOLENOID REPLACEMENT»(ref-170198-S23553853732005010500000) ).

Scheme 461

Scheme 462

Scheme 463

Scheme 464

Scheme 465

1. Disconnect the key switch connector (7P) from the steering lock assembly.
2. Connect the No. 7 terminal of the key switch connector to the battery positive terminal, and connect the No. 5 terminal to the battery negative terminal. (Scheme 462): Connecting Battery To Key Switch Connector (7P)
3. Turn the ignition switch to ACC (I) then push the ignition key.
4. Check the key interlock solenoid operation. A clicking sound should be heard while pushing the ignition key, and you should not be able to turn it to the OFF position. Does the key interlock solenoid operate properly? YES - Go to step 5. NO - Faulty key interlock solenoid/switch. Replace the ignition key cylinder/steering lock assembly.
5. Measure the voltage between the No. 7 terminal and body ground. (Scheme 463): Measuring Voltage Between No. 7 Terminal & Body Ground Is there battery voltage? YES - Go to step 6. NO - Check for a blown No. 47 (20A) fuse in the under-hood fuse/relay box. If the fuse is OK, repair open or short in the wire between the No. 7 terminal of the key switch connector and under hood fuse/relay box.
6. Disconnect the park pin switch connector on the shift lever.
7. With the shift lever in Park and pulled back toward the driver, check for continuity between the No. 1 and No. 3 terminals of the park pin switch connector. (Scheme 464): Checking For Continuity Between No. 1 & No. 3 Terminals Of Park Pin Switch Connector Is there continuity? YES - Go to step 8. NO - Repair open in the wires between the park pin switch and the connector. If the wires are OK replace the park pin switch.
8. Check for continuity between the No. 3 terminal of the park pin switch connector and the No. 5 terminal of the key switch connector. (Scheme 465): Checking For Continuity Between No. 3 Terminal Of The Park Pin Switch Connector & No. 5 Terminal Of The Key Switch Connector Is there continuity? YES - Go to step 9. NO - Repair open in the wire between No. 3 terminal of the park pin switch connector and the No. 5 terminal of the key switch connector.
9. Check for continuity between the No. 1 terminal of the park pin switch connector and body ground. see scheme 18: Check For Continuity Between No. 1 Terminal Of Park Pin Switch Connector & Body Ground Is there continuity? YES - Check for a loose key switch connector and park pin switch connector. If necessary, substitute a known-good steering lock assembly. NO - Repair open in the wire between the No. 1 terminal of the park pin switch connector and ground (G401), or repair poor ground (G401).