Honda 2004 Odyssey, Service Manual

Page: 143 / 2459

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Special Tools Required
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4-56
Engine Mount Control System
Troubleshooting
ENGINE MOUNT CONTROL
SOLENOID VALVE 2P CONNECTOR
IG 1
(BLK/YEL)
ENGINE MOUNT CONTROL
SOLENOID VALVE 2P CONNECTOR
IG 1
(BLK/YEL)
MCS
(GRN/WHT)
Vacuum pump/gauge, 0 30 in.Hg
A973X-041-XXXXX
NOTE:
• Check the vacuum hoses and lines for damage and
proper connections before troubleshooting.
• Before performing engine mount control system
troubleshooting, check for damage to the suspension,
subframe, body, or exhaust.
Follow this procedure if the engine vibrates excessively
when idling.
1. Warm up the engine to normal operating
temperature (the cooling fan comes on two times).
Go to step 2.
Adjust the idle speed (see page 11-201).
2. Fully press the brake pedal.
3. With the transmission in gear, have an assistant
disconnect and reconnect the 2P connector at the
engine mount control solenoid valve.
Reconnect the engine mount control
solenoid valve 2P connector to the solenoid valve.
The engine mount control system is OK.
Go to step 4.
4. Shift the transmission to P or N.
5. Disconnect the engine mount control solenoid
valve 2P connector from the engine mount control
solenoid valve.
6. Measure voltage between the No. 2 terminal and
body ground.
Go to step 7.
Repair an open in the wire between the
engine mount control solenoid valve connector and
No. 6 (15A) fuse in the under-dash driver’s fuse/
relay box.
7. Measure voltage between the engine mount
control solenoid valve 2P connector No. 1 terminal
and No. 2 terminal.
Go to step 8.
Repair an open in the wire between powertain
control module (PCM) connector terminal A2
(1999-2000, 2002-2004 models) or E24 (2001 model)
and the engine mount control solenoid valve
connector. If the wire is OK, substitute a known-
good PCM and recheck (see page 11-5).
Wire side of
female terminals
Wire side of
female terminals
Is the idle speed less than 7 30 r pm?
Is ther e a noticeable change in idle smoothness
when the engine mount contr ol solenoid valve 2P
connector is disconnected?
Is ther e batter y voltage?
Is ther e batter y voltage?
03/07/29 09:08:28 61S0X050_040_0056