Honda 2004 Odyssey Service Manual page 291

Cooling System
Coolant Temperature Gauge Test (cont'd)
5. Check for continuity between PCM connector
terminal E14 and gauge assembly connector
terminal C2.
PCM CONNECTOR E (31P)
(YEL/GRN)
GAUGE ASSEMBLY CONNECTOR C (16P)
Wire side of female terminals
Is there continuity?
YES Repair a short in the wire between PCM
connector E14 terminal and gauge connector
terminal C2.
NO Replace the fuel and temperature gauge
assembly.
10-8
MTRTW
(YEL/GRN)
Coolant Temperature Gauge Needle Goes
Past the Hot Mark - 2002-2004 models
1. Turn the ignition switch OFF, and disconnect the
negative cable from the battery. Then disconnect
PCM connector A (32P).
2. Connect the negative cable to the battery. Turn the
ignition switch ON (II) and watch the coolant
temperature gauge.
Does the temperature gauge needle move at all?
( you may have to watch it f or about 30 seconds.)
YES Go to step 3.
NO Substitute a known-good PCM and recheck
(see page 11-5). If the symptom/indication goes
away, replace the original PCM (see page 11-4).
3. Turn the ignition switch OFF, then turn it ON (II)
again, and watch the coolant temperature gauge.
Does the temperature gauge needle immediately
go past the Hot mark?
YES Replace the fuel and temperature gauge
assembly.
NO The temperature gauge needle went past the
Hot mark after about 30 seconds or more. Go to
step 4.
4. Turn the ignition switch OFF, and disconnect the
gauge assembly connector C (16P).