Odyssey V6-3.5L (2003)
Temperature Gauge: Testing and Inspection
Coolant Temperature Gauge Test
Coolant Temperature Gauge Needle Does Not Move at All:
1. Turn the ignition switch OFF, and connect Powertrain Control Module (PCM) connector terminal E14 to body ground with a jumper wire.
2. Turn the ignition switch ON (II).
After 30 seconds or more, does the temperature gauge needle move to the Hot side ?
YES - Substitute a known-good PCM and recheck. If the symptom/indication goes away, replace the original PCM.
NO - Go to step 3.
3. Turn the ignition switch OFF, and disconnect the negative cable from the battery. Then disconnect PCM connector E (31P).
4. Connect the negative cable to the battery. Turn the ignition switch ON (II), and measure voltage between PCM connector terminal E14 and body
around.
Is there about 5V ?
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 E14 and gauge assembly connector terminal C2.
Is there continuity ?
YES - Replace the fuel and temperature gauge assembly.
NO - Repair open in the wire between PCM connector terminal E 14 and gauge connector terminal C2.
Coolant Temperature Gauge Needle Goes Past the Hot Mark:
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 for about 30 seconds.)
YES - Go to step 3.
NO - Substitute a known-good PCM and recheck. If the symptom/indication goes away, replace the original PCM.
