HANDS FREE MODULE
TSB Revision
CHASSIS ELECTRICAL
54A-617
STEP 1. Check the multivision display operation.
Check if the multivision display work normally and the sound is
output.
Q: Is the check result normal?
YES : Go to Step 2.
NO : Troubleshoot the MMCS. (Refer to
P.54A-486
.)
STEP 2. Check hands free module connector C-141 and
multivision display connector C-06 for loose, corroded or
damaged terminals, or terminals pushed back in the
connector
Q: Are hands free module connector C-141 and multivision
display connector C-06 in good condition?
YES : Go to Step 3.
NO : Repair or replace the damaged component(s). Refer
to GROUP 00E, Harness Connector Inspection
P.00E-2
.
STEP 3. Check the wiring harness between hands free
module connector C-141 (terminal 16, 2) and multivision
display connector C-06 (terminal 84, 83).
• Check the signal lines for open circuit and short circuit.
NOTE: Also check intermediate connector C-15 for loose, cor-
roded, or damaged terminals, or terminals pushed back in the
connector. If intermediate connector C-15 is damaged, repair or
replace the connector as described in GROUP 00E, Harness
Connector Inspection.
Q: Is the wiring harness between hands free module
connector C-141 (terminal 16, 2) and multivision display
connector C-06 (terminal 84, 83) in good condition?
YES : Go to Step 4.
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 4. Check if the power supply circuit of hands free
ECU have a problem.
Perform the inspection Procedure 1 "Check the hands free
module power supply circuit." of the troubleshooting. (Refer to
P.54A-593
.)
Q: Is the check result normal?
YES : Go to Step 5.
NO : Repair according to the troubleshooting for reference.
STEP 5. Replace the hands free module temporarily, and
check the trouble symptom.
Q: Is the check result normal?
YES : Replace the hands free module.
NO : Replace the multivision display.