Honda 2004 Odyssey Service Manual page 1354

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ABS Indicator Circuit Troubleshooting
1. Turn the ignition switch ON (II), and watch the TCS
indicator.
Does the T CS indicator come on?
YES
If the TCS indicator comes on and goes off, it's
OK. If the TCS indicator stays on, go to step 13.
NO
Go to step 2.
2. Turn the ignition switch OFF then ON (II) again.
Does the brake system indicator come on?
YES
Go to step 3.
NO
Repair open in the brake system indicator
circuit.
• Blown BACKUP LIGHT (7.5A) fuse.
• Open in the wire between the BACKUP LIGHT
(7.5A) fuse and the gauge assembly.
• Open circuit inside the fuse box.
3. Turn the ignition switch OFF.
4. Disconnect the ABS/TCS control unit connector
A (26P).
5. Turn the ignition switch ON (II).
Does the ABS indicator come on?
YES
Check for loose ABS/TCS control unit
connectors. If necessary, substitute a known-good
ABS/TCS control unit, and recheck.
NO
Go to step 6.
6. Check the ABS indicator bulb in the gauge
assembly.
Is the bulb OK ?
YES
Go to step 7.
NO
Replace the ABS indicator bulb.
7. Turn the ignition switch OFF.
8. Disconnect the gauge assembly connector C (16P).
9. Check for continuity between the gauge assembly
connector C (16P) terminal No. 10 and body ground.
GAUGE ASSEMBLY CONNECTOR C (16P)
ABS (BLU/WHT)
Wire side of female terminals
Is there continuity?
YES
Repair short to body ground in the wire
between the gauge assembly and the ABS/TCS
control unit.
NO
Go to step 10.
10. Connect the gauge assembly connector C (16P).
11. Connect the gauge assembly connector B (22P)
terminal No. 16 to body ground with a jumper wire.
GAUGE ASSEMBLY CONNECTOR B (22P)
GND (BLK)
JUMPER WIRE
Wire side of female terminals
12. Turn the ignition switch ON (II).
Does the ABS indicator come on?
YES
Repair open in the wire between the gauge
assembly and body ground (G501).
NO
Replace the printed circuit board in the gauge
assembly.
(cont'd)
19-153

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