Honda Odyssey 2004. Manual — part 125
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*01
01
02
03
YES
NO
YES
NO
YES
NO
YES
NO
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
Wire side of female terminals
Wire side of female terminals
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
S0X4AZ6A20336114806FAAT00
’99-00, ’02-04 Models
YES
NO
YES
NO
YES
NO
YES
NO
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
S0X4AZ1A20336114806FAAT00
’01 Model
YES
NO
YES
NO
YES
NO
YES
NO
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
S0X4A00A20336100000MBAT00
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
A
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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