Suzuki Liana RH413, Руководство по обслуживанию

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Engine General Information and Diagnosis: 1A-130
Step Action Yes No
1 Check evaporator temp. sensor resistance
1) Disconnect ECM connectors with ignition switch at OFF
position.
2) Check resistance between terminals “C41-10” and “G04-
14” and terminals “G04-11” and “C41-10”.
Evaporator temp. sensor resistance
At 0
°
C: 6.3 – 6.9 k
Ω
At 25
°
C: 1.8 – 2.2 k
Ω
Is it within specification?
Go to Step 2. Faulty A/C evaporator
temp. sensor or its
circuit.
2 Check A/C switch signal
1) Check voltage at terminal “G04-16” under each condition
given as follows.
Voltage at terminal “G04-16”
Ignition switch ON, A/C switch OFF: 10 – 14 V
Ignition switch ON, A/C switch ON and blower motor
switch 1st speed position or more: 0 – 1 V
Is check result satisfactory?
Go to Step 3. “GRN/BLK” wire open or
short. Poor “G04-16”
terminal connection.
If wire and connection
are OK, faulty A/C
pressure switch, A/C
control module.
3 Check A/C condenser fan control system
Is A/C cooling fan started when A/C switch and heater
blower switch turned ON?
Go to Step 7. Go to Step 4.
4 Check A/C condenser fan control relay and its circuit
1) Check voltage at terminal “G04-9” under each condition
given as follows.
Voltage at terminal “G04-9”
Ignition switch ON, A/C switch OFF: 10 – 14 V
Ignition switch ON, A/C switch ON and blower motor
switch 1st speed position or more: 0 – 1 V
Is check result satisfactory?
Go to Step 5. “BLU/YEL” wire open or
short. Poor “G04-9”
terminal connection.
If wire and connection
are OK, substitute a
known-good ECM and
recheck. Then go to
Step 5.
I2RH01110136-01