HANDS FREE MODULE
TSB Revision
CHASSIS ELECTRICAL
54A-597
STEP 5. Check the wiring harness between hands free
module connector C-141 (terminal 1) and fusible link (36).
• Check the power supply line for open circuit and short cir-
cuit.
NOTE: Also check ETACS-ECU connector C-307, C-317 for
loose, corroded, or damaged terminals, or terminals pushed
back in the connector. If ETACS-ECU connector C-307, C-317
is damaged, repair or replace the connector as described in
GROUP 00E, Harness Connector Inspection
P.00E-2
.
Q: Is the wiring harness between hands free module
connector C-141 (terminal 1) and fusible link (36) in
good condition?
YES : The trouble can be an intermittent malfunction (Refer
to GROUP 00, How to use
Troubleshooting/inspection Service Points, How to
Cope with Intermittent Malfunction
P.00-15
).
NO : The wiring harness may be damaged or the
connector(s) may have loose, corroded or damaged
terminals, or terminals pushed back in the connector.
Repair the wiring harness as necessary.
STEP 6. Check the power supply circuit to the hands free
module. Measure the voltage at hands free module
connector C-141.
(1) Disconnect hands free module connector C-141, and
measure the voltage available at the wiring harness side of
the connector.
(2) Turn the ignition switch to "ACC" position.
(3) Measure the voltage between terminal 15 and ground.
OK: 1 voltage or less.
Q: Is the measured voltage 1 voltage or less?
YES : Replace the hands free module.
NO : Go to Step 7.
STEP 7. Check radio and CD player connector C-14
<Vehicles with radio and CD player> or multivision display
connector C-06 <Vehicles with MMCS> for loose, corroded
or damaged terminals, or terminals pushed back in the
connector.
Q: Is radio and CD player connector C-14 <Vehicles with
radio and CD player> or multivision display connector
C-06 <Vehicles with MMCS> in good condition?
YES : Go to Step 8.
NO : Repair or replace the damaged component(s). Refer
to GROUP 00E, Harness Connector Inspection
P.00E-2
.
AC702831DN
Harness side: C-141