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Honda Odyssey 2004. Manual - part 125

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＊０１

０１

０２

０３

YES

11-198

Idle Control System

PSP Switch Signal Circuit Troubleshooting (cont’d)

JUMPER WIRE

PSPSW (GRN)

GND (BLK)

PSP SWITCH 2P CONNECTOR

GND (BLK)

PSP SWITCH 2P CONNECTOR

PCM CONNECTORS

A (31P)

E (31P)

LG1 (BRN/BLK)

PSPSW(GRN)

PCM CONNECTOR E (31P)

PSPSW (GRN)

9. At the harness side, connect PSP switch 2P

connector terminals No. 1 and No. 2 with a jumper
wire.

10. Measure voltage between PCM connector

terminals A26 and E20.

Replace the PSP switch.

Go to step 11.

11. Turn the ignition switch OFF.

12. Check for continuity between PSP switch 2P

connector No. 2 terminal and body ground.

Repair open in the wire between the PSP

switch and PCM (E20).

Repair open in the wire between the PSP

switch and G201.

13. Turn the ignition switch OFF.

14. Disconnect the PSP switch 2P connector.

15. Turn the ignition switch ON (II).

16. Measure voltage between PCM connector

terminals A26 and E20.

Replace the PSP switch.

Go to step 17.

17. Turn the ignition switch OFF.

18. Disconnect PCM connector E (31P).

19. Check for continuity between body ground and

PCM connector terminal E20.

Repair short in the wire between the PCM

(E20) and the PSP switch.

Substitute a known-good PCM and recheck

(see page 11-5). If voltage is normal, replace the
original PCM.

Wire side of female terminals

Is ther e less than 1.0 V ?

Is ther e continuity?

Is ther e batter y voltage?

Is ther e continuity?

03/07/29 09:23:14 61S0X050_110_0198

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０１

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’99-00, ’02-04 Models

YES

11-199

Brake Pedal Position Switch Signal Circuit Troubleshooting

A (32P)

BKSW (WHT/BLK)

B (25P)

LG1 (BRN/BLK)

PCM CONNECTORS

LG1 (BRN/YEL)*

NOTE: Information marked with an asterisk ( ) applies
to ’02-04 models.

1. Check the brake lights.

Inspect the brake switch (see page 19-6).

Go to step 2.

2. Press the brake pedal.

Go to step 3.

Go to step 4.

3. Measure voltage between PCM connector

terminals A32 and B20 with the brake pedal
pressed.

The brake pedal position switch signal is

OK.

Repair open in the wire between the PCM

(A32) and the brake pedal position switch.

4. Inspect the STOP (20A) fuse in the under-hood fuse/

relay box.

Repair open in the wire between the brake

pedal position switch and the STOP (20A) fuse.
Inspect the brake pedal position switch (see page
19-6).

Repair short in the wire between the PCM

(A32) and the STOP (20A) fuse. Replace the STOP
(20A) fuse.

Wire side of female terminals

Ar e the br ake lights on without pr essing the br ake
pedal?

Do the br ake lights come on?

Is ther e batter y voltage?

Is the f use OK ?

03/07/29 09:23:14 61S0X050_110_0199

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０１

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’01 Model

YES

11-200

Idle Control System

Brake Pedal Position Switch Signal Circuit Troubleshooting (cont’d)

PCM CONNECTORS

A (31P)

E (31P)

LG1 (BRN/BLK)

BKSW
(WHT/BLK)

1. Check the brake lights.

Inspect the brake pedal position switch (see

page 19-6).

Go to step 2.

2. Press the brake pedal.

Go to step 3.

Go to step 4.

3. Measure voltage between PCM connector

terminals A26 and E9 with the brake pedal pressed.

The brake pedal position switch signal is

OK.

Repair open in the wire between the PCM (E9)

and the brake pedal position switch.

4. Inspect the STOP (20A) fuse in the under-hood fuse/

relay box.

Repair short in the wire between the PCM (E9)

and the STOP (20A) fuse. Replace the STOP (20A)
fuse.

Wire side of female terminals

Ar e the br ake lights on without pr essing the br ake
pedal?

Do the br ake lights come on?

Is ther e batter y voltage?

Is the f use OK ?

03/07/29 09:23:14 61S0X050_110_0200

Repair open in the wire between the brake

pedal position switch and the STOP (20A) fuse.
Inspect the brake pedal position switch (see
page 19-6).

±
±

＊０１

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Idle speed should be:
‘99-01 models:

730

50 rpm (in Park or neutral)

‘02-04 models:

710

10 rpm (in Park or neutral)

Idle speed should be:
‘99-01 models:

730

50 rpm (in Park or neutral)

‘02-04 models:

710

50 rpm (in Park or neutral)

11-201

Idle Speed Adjustment

Adjust the idle speed using the HDS procedure, if
possible. If not, use the following procedure:

NOTE:

• Leave the IAC valve connected.
• Before setting the idle speed, check these items:

– The MIL has not been reported on.
– Ignition timing
– Throttle cable adjustment
– Spark plugs
– Air cleaner
– PCV system
– No vacuum leaks

• On Canadian models, press the parking brake pedal.

Start the engine, then check that the headlights are
off.

1. Disconnect the EVAP canister purge valve 2P

connector.

2. Connect a tachometer.

3. Start the engine. Hold the engine at 3,000 rpm with

no load (in Park or neutral) until the radiator fan
comes on, then let it idle.

4. Check the idle speed with no-load conditions:

headlights, blower fan, rear window defogger,
radiator fan, and air conditioner off.

5. Adjust the idle speed, if necessary, by turning the

idle adjusting screw (A) 1/4-turn clockwise or
counterclockwise.

NOTE: Do not turn the idle adjusting screw more
than 1/4-turn without checking the idle speed.

6. After turning the idle adjusting screw 1/4-turn,

check the idle speed again. If it is out of spec, turn
the idle adjusting screw 1/4-turn again.

7. Allow the engine to idle for 1 minute with the

heater fan switch at HI and air conditioner on, then
check the idle speed.

NOTE:

• Do not turn the idle adjusting screw when the air

conditioner is on.

• If the idle speed is not within specification, see

the Symptom Troubleshooting Index.

8. Reconnect the EVAP canister purge valve 2P

connector.

03/07/29 09:24:12 61S0X050_110_0201

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