Suzuki GA413, Service Manual

Page: 63 / 1246

A/C COMPRESSOR DRIVE BELT INSPEC-
TION
1) Check belt tension by measuring how much it deflects when
pushed at intermediate point between compressor pulley and
crank pulley with about 100 N (10 kg, 22 lbs) force.
“a” : 8 – 9 mm (0.31 – 0.35 in.) as deflection/100N (10 kg, 22
lbs)
2) Check belt for wear and cracks, and replace as required.
1. Drive belt
2. Crankshaft pulley
3. A/C compressor
AIR CONDITIONING 1B-9
TERMINAL CIRCUIT NORMAL VOLTAGE CONDITION
A11
A12
A13
ECM
(A/C signal)
Refer to “INSPECTION OF ECM AND ITS CIR-
CUIT” in “ENGINE AND EMISSION CONTROL
SYSTEM” Section
A14
A15
A16
Compressor relay
0 – 1 V Blower fan switch ON and A/C switch ON at engine
running
Terminal “A9” (A/C cut signal) at 5 V or more
10 –14 V Other than above at ignition switch ON
B1 Evaporator thermistor 0 – 1 V Ignition switch ON
B2 Evaporator thermistor
0.9 – 1.1 V Thermistor temperature 25 C, 77 F at ignition
switch ON
B2 Evaporator thermistor
2.2 – 2.4 V Thermistor temperature 0 C, 32 F at ignition switch
ON