Shift Lock System Circuit Troubleshooting - Honda 2004 Odyssey Service Manual

Shift Lock System Circuit Troubleshooting

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 the P
position.
3. Press the brake pedal, and release the accelerator
pedal.
4. Measure the voltage between PCM connector
terminal A28 and body ground.
PCM CONNECTOR A (32P)
ILU (WHT/RED)
Wire side of female terminals
Is there battery voltage?
YES Check for an open in the wire between PCM
connector terminal A28 and the multiplex control
unit (driver's). If the wire is OK, 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, and disconnect the
battery negative terminal.
6. Disconnect PCM connectors A (32P) and B (25P).
7. Press the brake pedal, and measure the voltage
between PCM connector terminals A32 and B20 or
B22.
PCM CONNECTORS
A (32P)
BK SW (WHT/BLK)
LG1 (BRN/YEL)
Wire side of female terminals
Is there battery voltage?
YES Release the brake pedal, and go to step 8.
NO Repair open in the wire between PCM
connector terminal A32 and the brake pedal
position switch.
8. Connect PCM connectors A (32P) and B (25P).
9. Turn the ignition switch ON (II).
10. Measure the voltage between PCM connector
terminals A27 and B20 or B22.
PCM CONNECTORS
B (25P)
LG2 (BRN/YEL)
LG1 (BRN/YEL)
Wire side of female terminals
Is there about 0.5 V ( throttle f ully closed)?
YES Go to step 18.
NO Go to step 11.
B (25P)
LG2 (BRN/YEL)
C (31P)
TPS (RED/BLK)
(cont'd)
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