2005 SUZUKI JIMNY heater motor

Downloaded from www.Manualslib.com manuals search engine GENERAL INFORMATION 0A-21
Abbreviations May Be Used In This Manual
Abbreviations
AABC
ATDC
API
ATF
ALR
AC
A/T
A/C
ABDC
A/F
A-ELRAnti-lock Brake System
After Top Dead Center
American Petroleum Institute
Automatic Transmission Fluid
Automatic Locking Retractor
Alternating Current
Automatic Transmission
Air Conditioning
After Bottom Dead Center
Air Fuel Mixture Ratio
Automatic-Emergency
Locking RetractorEEBCM
ECM
ECT Sensor
EGR
EGRT Sensor
EFE Heater
ELR
EPS
EVAP
EVAP CanisterElectronic Brake Control Module,
ABS Control Module
Engine Control Module
Engine Coolant Temperature
Sensor (Water Temp. Sensor,
WTS)
Exhaust Gas Recirculation
EGR Temperature Sensor
(Recirculated Exhaust Gas Temp.
Sensor, REGTS)
Early Fuel Evaporation
Heater (Positive Temperature
Coefficient, PTC Heater)
Emergency Locking Retractor
Electronic Power Steering
Evaporative Emission
Evaporative Emission Canister
(Charcoal Canister) BB+
BTDC
BBDCBattery Positive Voltage
Before Top Dead Center
Before Bottom Dead Center
CCKT
CMP Sensor
CO
CPP Switch
CPU
CRSCircuit
Camshaft Position Sensor
(Crank Angle Sensor, CAS)
Carbon Monoxide
Clutch Pedal Position Switch
(Clutch Switch, Clutch Start
Switch)
Central Processing Unit
Child Restraint SystemF 4WD 4 Wheel Drive
GGEN
GNDGenerator
Ground
HHC
HO2SHydrocarbons
Heated Oxygen Sensor
DDC
DLC
DOHC
DOJ
DRL
DTCDirect Current
Data Link Connector
(Assembly Line Diag. Link, ALDL,
Serial Data Link, SDL)
Double Over Head Camshaft
Double Offset Joint
Daytime Running Light
Diagnostic Trouble Code
(Diagnostic Code)IIAC Valve
IAT Sensor
ICM
IG
ISC ActuatorIdle Air Control Valve (Idle Speed
Control Solenoid Valve, ISC
Solenoid Valve)
Intake Air Temperature Sensor
(Air temperature Sensor, ATS)
Immobilizer Control Module
Ignition
Idle Speed Control Actuator
(Motor)

Downloaded from www.Manualslib.com manuals search engine HEATER AND VENTILATION 1A-1
6F1
6G
1A
6K
6K
7A
7A1
7B1
7C1
7D
7E
7F
8A
8B
8C
8D
8E
9
10
10A
10B
SECTION 1A
HEATER AND VENTILATION
CONTENTS
General Description ....................................... 1A-2
Diagnosis ........................................................ 1A-3
Diagnosis Table ........................................... 1A-3
Wiring Circuit ................................................ 1A-3
On Vehicle Service ......................................... 1A-4Heater Blower Motor .................................... 1A-4
Heater Blower Resistor ................................ 1A-5
Heater Control Lever Assembly ................... 1A-5
Heater Blower Fan Switch ........................... 1A-7
Heater Unit/Boost Ventilation ....................... 1A-7

WARNING:
For vehicles equipped with Supplement Restraint (Air Bag) System
 Service on and around the air bag system components or wiring must be performed only by an
authorized SUZUKI dealer. Refer to “Air Bag System Components and Wiring Location View” under
“General Description” in Section 10B in order to confirm whether you are performing service on or
near the air bag system components or wiring. Please observe all WARNINGS and “Service Precau-
tions” under “On-Vehicle Service” in Section 10B before performing service on or around the air
bag system components or wiring. Failure to follow WARNINGS could result in unintentional activa-
tion of the system or could render the system inoperative. Either or these two conditions may result
in severe injury.
 Technical service work must be started at least 90 seconds after the ignition switch is turned to the
“LOCK” position and the negative cable is disconnected from the battery. Otherwise, the system
may be activated by reserve energy in the Sensing and Diagnostic Module (SDM).
NOTE:
The link mechanism of the heater varies depending on the specifications.

Downloaded from www.Manualslib.com manuals search engine 1A-2 HEATER AND VENTILATION
General Description
The heater, an in and out air selectable-type hot water heater, is so constructed that it is possible to assure an
agreeable ventilation at all times by providing the ventilator air outlets at the center and both sides (right and left)
of the instrument panel, the hot air outlet at a place close to the feet of front passengers, and the defroster air
outlets at places, right and left, along the windshield glass.
The heater and ventilation consist of following parts.
1. Side ventilator outlet 6. Ventilator duct 11. Heater core
2. Side defroster outlet 7. Control lever 12. Damper
3. Center ventilator outlet 8. Blower motor 13. Air inlet box (without air conditioning, without
other parts marked *)/cooling unit (if equipped
with air conditioning) 4. Heater unit 9. Blower resistor
5. Defroster duct 10. Blower fan switch/Blower fan and A/C
switch (if equipped with air conditioning)

Downloaded from www.Manualslib.com manuals search engine HEATER AND VENTILATION 1A-3
Diagnosis
Diagnosis Table
Wiring Circuit
Condition Possible Cause Correction
Heater blower won’t
work even when its
switch is ON.Blower fuse blown Replace fuse to check for short.
Blower resistor faulty Check resistor.
Blower fan switch faulty Check blower fan switch.
Blower motor faulty Replace motor.
Wiring or grounding faulty Repair as necessary.
Incorrect temperature
output.Control cables broken or binding Check cables.
Temperature control lever faulty Check control lever.
Control cable clamp position is faulty Check and adjustment.
Air damper broken Repair damper.
Air ducts clogged Repair air ducts.
Heater radiator leaking or clogged Replace radiator.
Heater hoses leaking or clogged Replace hoses.
When mode control
lever is changed, air
outlet port is not
changed.Control cable broken or binding Check cable.
Mode control lever faulty Check control lever.
Control cable clamp position is faulty Check and adjustment.
Air damper broken Repair damper.
Air ducts leaking on clogged Repair air ducts.
1. Heater motor 3. Heater blower motor switch 5. To ECM 7. To 4WD controller or A/C controller
(if equipped)
2. Fuse box 4. Heater resister 6. To combination switch

Downloaded from www.Manualslib.com manuals search engine 1A-4 HEATER AND VENTILATION
On Vehicle Service
Heater Blower Motor
REMOVAL
1) Disconnect negative (–) cable at battery.
2) Disable air bag system, if equipped.
Refer to “Disabling Air Bag System” in Section 10B.
3) Remove column hole cover.
4) Disconnect blower motor couplers.
5) Remove blower motor (1).
INSPECTION
Check continuity between two terminal as shown figure.
If check results are continuity, proceed to next operation check, If
not replace.
Connect battery to blower motor as shown, then check that the
blower motor operates smoothly.
INSTALLATION
1) Reverse removal procedure for installation.
2) Enable air bag system, if equipped.
Refer to “Enabling Air Bag System” in Section 10B.

Downloaded from www.Manualslib.com manuals search engine HEATER AND VENTILATION 1A-5
Heater Blower Resistor
REMOVAL
1) Disconnect negative (–) cable at battery.
2) Disable air bag system, if equipped.
Refer to “Disabling Air Bag System” in Section 10B.
3) Disconnect resistor coupler.
4) Remove blower motor resistor (3) as shown figure.
INSPECTION
Measure each terminal-to-terminal resistance on resistor
If measured resistance is incorrect, replace heater blower motor
resistor.
Heater blower resistor resistance
Me-Lo: approx. 2.4
Ω
Me-Hi: approx. 1.2
Ω
INSTALLATION
1) Reverse removal procedure for installation.
2) Enable air bag system, if equipped.
Refer to “Enabling Air Bag System” in Section 10B.
Heater Control Lever Assembly
REMOVAL
1) Disconnect negative (–) cable at battery.
2) Disable air bag system, if equipped.
Refer to “Disabling Air Bag System” in Section 10B.
3) Remove meter cluster hood, ashtray, center garnish, instru-
ment glove box and radio or accessory case (if equipped),
Then remove mounting screws (2) from heater control lever
assembly (1).
1. Heater unit
2. Blower motor

Downloaded from www.Manualslib.com manuals search engine 1B-6 AIR CONDITIONING (OPTIONAL)
Cool air won’t come
out or insufficient
cooling (A/C system
normal operative)Insufficient or excessive charge of
refrigerantCheck charge of refrigerant and system for
leaks.
Condenser clogged Check condenser.
A/C evaporator clogged or frosted Check A/C evaporator and A/C evaporator
thermistor.
A/C evaporator thermistor faulty Check A/C evaporator thermistor.
Expansion valve faulty Check expansion valve.
Receiver / dryer clogged Check receiver / dryer.
Compressor drive belt loosen or broken Adjust or replace drive belt.
Magnetic clutch faulty Check magnetic clutch.
Compressor faulty Check compressor.
Air in A/C system Replace receiver / dryer, and perform
evacuation and charging.
Air leaking from cooling unit or air duct Repair as necessary.
Heater and ventilation system faulty Check air inlet box (cooling unit), heater
control lever assembly and heater unit
referring to Section 1A.
Blower fan motor faulty Check blower fan motor referring to Sec-
tion 1A.
Excessive compressor oil existing in
A/C systemPull out compressor oil in A/C system cir-
cuit, and replace compressor.
Cool air won’t come
out only intermittentlyWiring connection faulty Repair as necessary.
Expansion valve faulty Check expansion valve.
Excessive moisture in A/C system Replace receiver / dryer, and perform
evacuation and charging.
Magnetic clutch faulty Check magnetic clutch.
Excessive charge of refrigerant Check charge of refrigerant.
Thermal switch faulty Check thermal switch.
Cool air comes out
only at high speedCondenser clogged Check A/C condenser.
Insufficient charge of refrigerant Check charge of refrigerant.
Air in A/C system Replace receiver / dryer, and perform
evacuation and charging.
Compressor drive belt loosen or broken Adjust or replace drive belt.
Compressor faulty Check compressor.
Cool air won’t come
out only at high speedExcessive charge of refrigerant Check charge refrigerant.
A/C evaporator frosted Check A/C evaporator and A/C evaporator
thermistor.
Insufficient velocity of
cooled airA/C evaporator clogged or frosted Check A/C evaporator and A/C evaporator
thermistor.
Air leaking from cooling unit or air duct Repair as necessary.
Blower fan motor faulty Check blower fan motor referring to Sec-
tion 1A.
Wiring or grounding faulty Repair as necessary. Condition Possible Cause Correction

Downloaded from www.Manualslib.com manuals search engine AIR CONDITIONING (OPTIONAL) 1B-13
CROSSING POINT OF CENTER VENTILATION LOUVER TEMPERATURE AND RECIRCULATION AIR
INLET TEMPERATURE
Detail diagnosis table (Ambient temperature at 30°C (86°F))
Condition Possible Cause Correction
Crossing point is
higher than accept-
able range
(“E” area)Insufficient or excessive charge of refrigerant Check refrigerant pressure
Dirty or bent A/C evaporator fins Clean or repair
Air leakage from cooling (heater) unit or air duct Repair or replace
Malfunctioning, switch over function of door in
cooling (heater) unitRepair or replace
Compressor malfunction Check compressor
Crossing point is
lower than acceptable
range
(“F” area)Insufficient air volume from center duct (Heater
blower malfunction)Check blower motor and fan
Compressor malfunction Check compressor
Condition
Possible Cause Correction MANIFOLD
GAUGEMPa
(kg/cm
2)
(psi)Detail
Lo Hi
0.23 – 0.35
(2.3 – 3.5)
(33 – 50)1.4 – 1.75
(14 – 17.5)
(200 – 249)Normal condition
––
Negative
pressure0.5 – 0.6
(5 – 6)
(71.2 – 85.3)The low pressure side
reads a negative pres-
sure, and the high pres-
sure side reads an
extremely low pressure.
Presence of frost
around tubing to and
from receiver / dryer
and expansion valve.Dust particles or water
droplets are either stuck
or frozen inside expan-
sion valve, preventing the
refrigerant from flowing.Clean expansion valve.
Replace it if it cannot be
cleaned.
Replace receiver / dryer.
Evacuate the A/C sys-
tem and recharge with
fresh refrigerant.
Normal :
0.23 – 0.35
(2.3 – 3.5)
(33 – 50)
↑
↑ ↑ ↑ ↓
↓↓ ↓
Abnormal :
Negative
pressureNormal :
1.4 – 1.75
(14 – 17.5)
(200 – 249)
↑
↑ ↑ ↑ ↓
↓↓ ↓
Abnormal :
0.69 – 0.98
(7 – 10)
(100 – 142)During A/C operation,
the low pressure side
sometimes indicates
negative pressure, and
sometimes normal
pressure. Also high
pressure side reading
fluctuates between the
abnormal and normal
pressure.Expansion valve is frozen
due to moisture in the
system, and temporarily
shuts off the refrigeration
cycle.Replace expansion valve.
Replace receiver / dryer.
Evacuate A/C system
and recharge with fresh
refrigerant.