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REFRIGERANT LINES
• If reusing the evaporator, install the thermo control amp. at the position marked when removing the
thermo control amp., if equipped (MR18DE - TYPE 2 systems).
• When recharging refrigerant, check for leaks.
Removal and Installation of Expansion ValveINFOID:0000000005930883
REMOVAL
1. Use the recovery/recycling equipment to evacuate the refrigerant.
2. Remove cowl top cover. Refer to EI-24, "
Removal and Installation".
3. Remove lower dash insulator.
4. Disconnect low-pressure flexible hose and high-pressure pipe from evaporator. Refer to MTC-59,
"Removal and Installation".
5. Remove expansion valve bolts (A), and then remove expansion valve (1).
CAUTION:
Cap or wrap the joint of the pi pe with suitable material such
as vinyl tape to avoid the entry of air.
INSTALLATION
Installation is in the reverse order of removal.
CAUTION:
• Replace O-rings of evaporator with new ones, and apply compressor oil when installing.
• When recharging refrigerant, check for leaks.
Checking of Refrigerant LeaksINFOID:0000000005930884
Perform a visual inspection of all refrigeration parts, fittings, hoses and components for signs of A/C oil leak-
age, damage and corrosion. A/C oil leakage may indicate an area of refrigerant leakage. Allow extra inspec-
tion time in these areas when using either an electronic refrigerant leak detector or fluorescent dye leak
detector.
If dye is observed, confirm the leak with an electronic refrigerant leak detector. It is possible a prior leak was
repaired and not properly cleaned.
When searching for leaks, do not stop when one leak is found but continue to check for additional leaks at all
system components and connections.
When searching for refrigerant leaks using an electronic leak detector, move the probe along the suspected
leak area at 25 to 50 mm (1 to 2 in) per second and no further than 1/4 inch from the component.
CAUTION:
Moving the electronic leak detector probe slower an d closer to the suspected leak area will improve
the chances of finding a leak.
Checking System for Leaks Using the Fluorescent Leak DetectorINFOID:0000000005930885
1. Check A/C system for leaks using the UV lamp and safety goggles J-42220 in a low sunlight area (area
without windows preferable). Illuminate all components, fittings and lines. The dye will appear as a bright
green/yellow area at the point of leakage. Fluoresce nt dye observed at the evaporator drain opening indi-
cates an evaporator core assembly (tubes, core or expansion valve) leak.
2. If the suspected area is difficult to see, use an adjustable mirror or wipe the area with a clean shop rag or cloth, with the UV lamp for dye residue.
3. After the leak is repaired, remove any residual dye using dye cleaner J-43872 to prevent future misdiag- nosis.
4. Perform a system performance chec k and verify the leak repair with an approved electronic refrigerant
leak detector.
NOTE:
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CONTENTS
WIPER, WASHER & HORN
SERVICE INFORMATION .. ..........................2
PRECAUTION ................................................ .....2
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ............................................................. ......
2
Precaution Necessary for Steering Wheel Rota-
tion After Battery Disconnect ............................... ......
2
Precaution for Procedure without Cowl Top Cover ......3
PREPARATION ...................................................4
Special Service Tool ........................................... ......4
FRONT WIPER AND WASHER SYSTEM ..........5
Component Parts and Harness Connector Loca-
tion ...................................................................... ......
5
System Description ...................................................5
CAN Communication System Description .................7
Schematic .................................................................8
Wiring Diagram - WIPER - ........................................9
Terminal and Reference Value for BCM .................12
Terminal and Reference Value for IPDM E/R .........12
How to Proceed with Trouble Diagnosis .................12
Preliminary Check ...................................................12
CONSULT-III Function (BCM) .................................12
CONSULT-III Function (IPDM E/R) .........................13
Front Wiper Does Not Operate ...............................14
Front Wiper Does Not Return to Stop Position (Af-
ter Front Wiper Operates for 10 Seconds, They
Stop for 20 Seconds, and After Repeating the Op-
eration Five Times, They Become Inoperative) ......
16
Only Front Wiper Low Does Not Operate ...............17
Only Front Wiper High Does Not Operate ...............18
Only Front Wiper Intermittent Does Not Operate ....19
Front Wiper Intermittent Operation Switch Posi-
tion Cannot Be Adjusted .........................................
20
Wiper Does Not Wipe When Front Washer Oper-
ates .........................................................................
20
Front Wiper Does Not Stop .....................................20
Removal and Installation of Front Wiper Arms ........20
Adjustment of Wiper Arm Stop Location .............. ....21
Removal and Installation of Front Wiper Drive As-
sembly .....................................................................
22
Removal and Installation of Front Washer Nozzle ....22
Inspection for Washer Nozzle ..................................23
Washer Nozzle Adjustment ................................. ....24
Washer Tube Layout ...............................................24
Removal and Installation of Front Wiper and
Washer Switch .........................................................
25
Inspection of Front Wiper and Washer Switch Cir-
cuit ...........................................................................
25
Removal and Installation of Washer Tank ...............25
Removal and Installation of Front Washer Motor ....26
REAR WIPER AND WASHER SYSTEM ..........27
Component Parts and Harness Connector Loca-
tion ....................................................................... ....
27
System Description ..................................................27
Wiring Diagram - WIP/R - ........................................29
Terminal and Reference Value for BCM ..................31
How to Proceed with Trou ble Diagnosis ..................31
Preliminary Check ............................................... ....31
CONSULT-III Function (BCM) .................................31
Rear Wiper Does Not Operate ............................ ....31
Rear Wiper Stop Position Is Incorrect .....................33
Only Rear Wiper Does Not Operate ........................34
Only Rear Wiper Intermittent Does Not Operate .....34
Wiper Does Not Wipe When Rear Washer Oper-
ates ..........................................................................
34
Removal and Installation .........................................34
Washer Nozzle Adjustment .....................................37
POWER SOCKET .............................................38
Wiring Diagram - P/SCKT - .....................................38
Removal and Installation .........................................38
HORN ................................................................40
Wiring Diagram - HORN - ........................................40
Removal and Installation .........................................40
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5. When the repair work is completed, return the ignition switch to the ″LOCK ″ position before connecting
the battery cables. (At this time, the steering lock mechanism will engage.)
6. Perform a self-diagnosis check of al l control units using CONSULT-III.
Precaution for Procedure without Cowl Top CoverINFOID:0000000005929205
When performing the procedure after removing cowl top cover, cover
the lower end of windshield with urethane, etc.
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FRONT WIPER AND WASHER SYSTEM
Component Parts and Har ness Connector LocationINFOID:0000000005929206
System DescriptionINFOID:0000000005929207
• Front wiper relays (front wiper relay, front wiper high relay) are located in the IPDM E/R (intelligent power
distribution module engine room).
• Combination switch (wiper switch) is composed of a combination of 5 output terminals and 5 input terminals.
Terminal combination status is read by BCM (body control module) when switch is turned ON.
• BCM controls front wiper LO, HI, and INT (intermittent) operation.
• IPDM E/R operates wiper motor accordi ng to CAN communication signals from BCM.
OUTLINE
Power is supplied at all times• to ignition relay, located in IPDM E/R, from battery directly,
• through 40A fusible link (letter g, located in fuse and fusible link box)
• to BCM terminal 70,
• through 30A fuse (No. 39, located in IPDM E/R)
• to front wiper relay located in IPDM E/R
• through 15A fuse (No. 52, located in IPDM E/R), and
• through 20A fuse (No. 53, located in IPDM E/R)
• to CPU located in IPDM E/R.
When ignition switch is in ON or START position, power is supplied • through ignition relay (located in IPDM E/R)
• to front wiper relay (located in IPDM E/R), and
1. IPDM E/R E45, E46 and E48 2. BCM M18 and M20 (view with glove
box removed)3. Front wiper motor E1
(view with cowl
top cover removed)
4. Front and rear washer motor E2 (view with front bumper fascia re-
moved) 5. Combination switch (wiper switch)
M28 : Front
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< SERVICE INFORMATION >
FRONT WIPER AND WASHER SYSTEM
Removal and Installation of Front Wiper Drive Assembly
INFOID:0000000005929227
REMOVAL
1. Operate the front wiper motor, and stop at the auto stop position.
2. Remove wiper arms. Refer to WW-20, "
Removal and Installation of Front Wiper Arms" .
3. Remove cowl top cover. Refer to EI-24
.
4. Disconnect wiper motor connector.
5. Remove front wiper drive assembly bolts, and remove front wiper drive assembly.
INSTALLATION
1. Install front wiper drive assembly.
2. Connect wiper motor connector. Turn combination switch (wiper switch) on to operate wiper motor, then turn combination switch (wiper switch) off (auto stop).
3. Install cowl top cover. Refer to EI-24
.
4. Install the wiper arms. Refer to WW-20, "
Removal and Installation of Front Wiper Arms" .
Removal and Installation of Front Washer NozzleINFOID:0000000005929228
REMOVAL
1. Remove cowl top cover. Refer to EI-24, "Removal and Installation" .
2. Remove washer tube.
1. Front RH wiper blade 2. Front RH wiper arm 3. Wiper arm cap
4. Front wiper drive assembly 5. Front LH wiper arm 6. Wiper arm cap
7. Front LH wiper blade
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3. While pressing pawl (A) on the reverse side of front washer noz- zle (1), remove front washer nozzle (1) from cowl top cover.
INSTALLATION
1. Install washer tube in nozzle.
2. Install nozzle to the vehicle.
3. Adjust nozzle spray location. Refer to WW-24, "
Washer Nozzle Adjustment" .
CAUTION:
The spray points differ, so be sure to install left and right nozzles correctly.
Inspection for Washer NozzleINFOID:0000000005929229
CHECK VALVE INSPECTION
Blow air in the injection direction, and make sure that air flows only
one way. Make sure that the reverse direction is not possible.
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