Suzuki Wagon R Manual page 1890

Termi- Wire Circuit
nal
E21-30 LT A/C switch
GRN/ input
RED
E22-16 YEL/ Engine coolant
GRN temperature
sensor input
E22-28 BRN/ Sensor ground Ground to
WHT
E21-13 PNK/ Blower fan
BLU speed input
Measurement Normal value
ground
Ground to 0 – 1 V
engine (Fig B)
10 – 14 V
Ground to 0.71 – 0.76 V
engine (Fig B) (290 – 320
0.35 – 0.37 V
(136 – 144
–0.3 – 0.3 V
body (Fig A)
Ground to 0 – 2 V
engine (Fig B)
3 – 5 V
10 – 14 V
Compressor Drive Belt (M13 Engine Model)
Inspection
• Check compressor drive belt (6) for wear and cracks, and
replace as required.
• Check compressor drive belt (6) tension by measuring how
much it deflects when pushed at intermediate point between
compressor pulley (1) and tension pulley (2) with about 100
N (10 kg, 22 lbs) force after crankshaft pulley 1 rotating. If
belt tension is without specification, adjust belt tension refer-
ring to below procedures.
Compressor drive belt tension
"a": 3 – 5 mm (0.12 – 0.20 in.)
New compressor drive belt tension
"a": 2 – 4 mm (0.08 – 0.16 in.)
Adjustment
1) Loosen tension pulley nut (3).
2) Adjust belt tension by tighten or loosen tension pulley adjust-
ing bolt (4).
3) Tighten tension pulley nut (3).
4) Turn the crank pulley (5) 1 revolution, then check belt ten-
sion.
Replacement
1) Loosen tension pulley nut (3).
2) Loosen belt tension by loosen tension pulley adjusting bolt
(4).
3) Remove compressor drive belt (6).
AIR CONDITIONING (OPTIONAL) 1B-5
Condition
A/C switch ON with ignition switch
ON
A/C switch OFF with ignition switch
ON
Engine coolant temperature at
Ω
) Approx. 80 ºC (176 ºF) with ignition
ON
Engine coolant temperature at
Ω )
Approx. 110 ºC (230 ºF) with ignition
ON
Ignition switch ON
Blower switch 2nd, 3rd or 4th position
with ignition switch ON
• Blower switch 1st position with igni-
tion switch ON
• A/C switch ON and blower switch
off with ignition ON
Blower switch OFF position with igni-
tion switch ON