Honda Odyssey 2004. Manual — part 128
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*04
01
YES
NO
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11-210
Fuel Supply System
PGM-FI Main Relay Circuit Troubleshooting (cont’d)
STSW (BLU/ORN)
PGM-FI MAIN RELAY 7P CONNECTOR
IMOFPR (GRN/YEL)
PCM CONNECTOR A (32P)
IMOFPR
(GRN/YEL)
PGM-FI MAIN RELAY 7P CONNECTOR
8. Shift to Park, then turn the ignition switch to the
START (III) position, and measure voltage between
body ground and PGM-FI main relay 7P connector
terminal No. 2.
Go to step 10.
Go to step 9.
9. Check for a blown No. 13 STARTER SIGNAL (7.5A)
fuse in the driver’s under-dash fuse/relay box.
Repair short in the wire between the PGM-FI
main relay and the No. 13 STARTER SIGNAL (7.5A)
fuse.
Repair open in the wire between the PGM-FI
main relay and the No. 13 STARTER SIGNAL
(7.5A).
10. Turn the ignition switch OFF.
11. Disconnect PCM connector A (32P).
12. Check for continuity between PGM-FI main relay 7P
connector terminal No. 1 and PCM connector
terminal A15.
Go to step 13.
Repair open in the wire between the PGM-FI
main relay and the PCM (A15).
13. Reconnect PCM connector A (32P) and the PGM-FI
main relay 7P connector.
14. Turn the ignition switch ON (II).
Wire side of female terminals
Wire side of female terminals
Is ther e batter y voltage?
Is the f use blown?
Is ther e continuity?
03/07/29 09:24:20 61S0X050_110_0210
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*05
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*06
+
YES
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NO
11-211
PG1 (BLK)
IGP1
(YEL/BLK)
IGP2
(YEL/BLK)
PCM CONNECTOR B (25P)
No. 1
No. 2
No. 3
No. 4
No. 5
No. 6
No. 7
To IGN. 1
To GROUND
To ST. SWITCH
To PCM
(A15)
To FUEL PUMP
To PCM
(B1, B9)
To BAT (
)
PCM CONNECTORS
A (32P)
B (25P)
IMOFPR (GRN/YEL)
PG1 (BLK)
15. Measure voltage between PCM connector
terminals B1 and B2, and between B9 and B2.
Go to step 16.
Check for an open in the wires between the
PGM-FI main relay and the PCM (B1, B9). If the
wires are OK, replace the PGM-FI main relay.
16. Turn the ignition switch OFF, then ON (II) again.
17. Measure voltage between PCM connector
terminals A15 and B2 within the first 2 seconds
after the ignition switch is turned ON (II).
The PGM-FI main relay may be faulty. Go to
step 18.
Substitute a known-good PCM and recheck
(see page 11-5). If the prescribed voltage is now
available, replace the original PCM.
18. Remove the PGM-FI main relay.
19. Connect battery power to PGM-FI main relay 7P
connector terminal No. 2, and connect PGM-FI
main relay 7P connector terminal No. 1 to ground.
Then check for continuity between PGM-FI main
relay 7P connector terminals No. 5 and No. 4.
NOTE: Use the terminal numbers shown. Ignore
the terminal numbers molded into the relay.
Go to step 20.
Replace the PGM-FI main relay and retest.
20. Connect battery power to PGM-FI main relay 7P
connector terminal No. 5, and connect PGM-FI
main relay 7P connector terminal No. 3 to ground.
Then check for continuity between PGM-FI main
relay 7P connector terminals No. 7 and No. 6.
Go to step 21.
Replace the PGM-FI main relay and retest.
21. Connect battery power to PGM-FI main relay 7P
connector terminal No. 6, and connect ground to
PGM-FI main relay 7P connector terminal No. 1.
Then check for continuity between PGM-FI main
relay 7P connector terminals No. 5 and No. 4.
The PGM-FI main relay is OK.
Replace the PGM-FI main relay and retest.
Wire side of female terminals
Wire side of female terminals
Is ther e batter y voltage?
Is ther e 1.0 V or less?
Is ther e continuity?
Is ther e continuity?
Is ther e continuity?
03/07/29 09:24:21 61S0X050_110_0211
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*01
*02
*03
S0X4AZ1A20326445512FAAT00
’01 Model
YES
NO
YES
NO
YES
NO
YES
NO
YES
NO
11-212
Fuel Supply System
PGM-FI Main Relay Circuit Troubleshooting (cont’d)
PG1 (BLK)
PGM-FI MAIN RELAY 7P CONNECTOR
BAT (WHT/GRN)
PGM-FI MAIN RELAY 7P CONNECTOR
IG1 (RED/WHT)
PGM-FI MAIN RELAY 7P CONNECTOR
1. Turn the ignition switch OFF.
2. Disconnect the PGM-FI main relay 7P connector.
3. Check for continuity between body ground and
PGM-FI main relay 7P connector terminal No. 3.
Go to step 4.
Repair open in the wire between the PGM-FI
main relay and G101.
4. Measure voltage between body ground and PGM-FI
main relay 7P connector terminal No. 7.
Go to step 6.
Go to step 5.
5. Check for a blown ACG S (15A) fuse in the under-
hood fuse/relay box.
Repair short in the wire between the PGM-FI
main relay and the ACG S (15A) fuse.
Repair open in the wire between the PGM-FI
main relay and the ACG S (15A) fuse.
6. Turn the ignition switch ON (II), and measure
voltage between body ground and PGM-FI main
relay 7P connector terminal No. 5.
Go to step 8.
Go to step 7.
7. Check for a blown No. 1 FUEL PUMP (15A) fuse in
the driver’s under-dash fuse/relay box.
Repair short in the wire between the PGM-FI
main relay and the No. 1 FUEL PUMP (15A) fuse.
Repair open in the wire between the PGM-FI
main relay and the No. 1 FUEL PUMP (15A) fuse.
Wire side of female terminals
Wire side of female terminals
Wire side of female terminals
Is ther e continuity?
Is ther e batter y voltage?
Is the f use blown?
Is ther e batter y voltage?
Is the f use blown?
03/07/29 09:24:21 61S0X050_110_0212
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*04
01
02
YES
NO
YES
NO
YES
NO
YES
NO
11-213
STSW (BLU/ORN)
PGM-FI MAIN RELAY 7P CONNECTOR
IMOFPR
(GRN/YEL)
PGM-FI MAIN RELAY 7P CONNECTOR
PCM CONNECTOR E (31P)
IMOFPR
(GRN/YEL)
PG1 (BLK)
IGP1
(YEL/BLK)
IGP2
(YEL/BLK)
PCM CONNECTOR A (31P)
8. Shift to Park, then turn the ignition switch to the
START (III) position, and measure voltage between
body ground and PGM-FI main relay 7P connector
terminal No. 2.
Go to step 10.
Go to step 9.
9. Check for a blown No. 13 STARTER SIGNAL (7.5A)
fuse in the driver’s under-dash fuse/relay box.
Repair short in the wire between the PGM-FI
main relay and the No. 13 STARTER SIGNAL (7.5A)
fuse.
Repair open in the wire between the PGM-FI
main relay and the No. 13 STARTER SIGNAL
(7.5A).
10. Turn the ignition switch OFF.
11. Disconnect PCM connector E (31P).
12. Check for continuity between PGM-FI main relay 7P
connector terminal No. 1 and the PCM connector
terminal E1.
Go to step 13.
Repair open in the wire between the PGM-FI
main relay and the PCM (E1).
13. Reconnect PCM connector E (31P) and the PGM-FI
main relay 7P connector.
14. Turn the ignition switch ON (II).
15. Measure voltage between PCM connector
terminals A3 and A5, and between A2 and A5.
Go to step 16.
Check for an open in the wires between the
PGM-FI main relay and the PCM (A2, A3). If the
wires are OK, replace the PGM-FI main relay.
(cont’d)
Wire side of female terminals
Wire side of female terminals
Wire side of female terminals
Is ther e batter y voltage?
Is the f use blown?
Is ther e continuity?
Is ther e batter y voltage?
03/07/29 09:24:22 61S0X050_110_0213
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