Honda 2004 Odyssey Service Manual page 290

4. Connect the negative cable to the battery. Turn the
ignition switch ON (ll), and measure voltage
between PCM connector terminal A31 and body
ground.
PCM CONNECTOR A (32P)
Wire side of female terminals
Is there about 5 V ?
YES Replace the fuel and temperature gauge
assembly.
NO Go to step 5.
5. Turn the ignition switch OFF, and check for
continuity between PCM connector terminal A31
and gauge assembly connector terminal C2.
PCM CONNECTOR A (32P)
(YEL/GRN)
GAUGE ASSEMBLY CONNECTOR C (16P)
Wire side of female terminals
Is there continuity?
YES Replace the fuel and temperature gauge
assembly.
NO Repair an open in the wire between PCM
connector terminal A31 and gauge connector
terminal C2.
ECTOUT
(YEL/GRN)
ECTOUT
(YEL/GRN)
Coolant Temperature Gauge Needle Goes
Past the Hot Mark - 2001 model
1. Turn the ignition switch OFF, and disconnect the
negative cable from the battery. Then disconnect
PCM connector E (31P).
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).
(cont'd)
10-7