Mitsubishi Galant (2004+). Manual - part 778
MANUAL A/C DIAGNOSIS
TSB Revision
HEATER, AIR CONDITIONING AND VENTILATION
55A-251
NOTE: Also check joint connector C-03 and intermediate con-
nector C-29 for loose, corroded, or damaged terminals, or ter-
minals pushed back in the connector. If joint connector C-03 or
intermediate connector C-29 is damaged, repair or replace the
connector as described in GROUP 00E, Harness Connector
Inspection
.
Q: Is the wiring harness between A/C-ECU connector C-16
(terminal 36) and the ignition switch (ACC) in good
condition?
YES : It can be assumed that this malfunction is intermittent.
Refer to GROUP 00, How to Use
Troubleshooting/Inspection Service Points
NO : Repair the wiring harness. Check that the air
conditioning works normally.
STEP 6. Measure the voltage at A/C-ECU connector C-16.
(1) Disconnect A/C-ECU connector C-16 and measure the
voltage at the harness side.
(2) Measure the voltage between terminal 3 and ground.
• The measured value should be approximately 12 volts
(battery positive voltage).
Q: Is the measured voltage approx. 12 volts?
YES : Go to Step 8.
NO : Go to Step 7.
AC305232
CONNECTORS: C-03, C-29
C-29
C-29
C-03
C-03
AT
AC305233
CONNECTOR: C-15
BG
C-105 (B)
HARNESS SIDE
AC209365
CONNECTOR C-15
(HARNESS SIDE)
HM