Compressor Assembly On-Vehicle Inspection; Compressor Assembly Removal And Installation For M16 Engine Model - Suzuki GRAND VITARA Owner's Manual

7B-73 Air Conditioning System:
3) Check that there is no continuity between terminals
"C" and "D".
If there is continuity, replace integration relay No.2
(1).
4) Connect battery positive (+) terminal to terminal "B"
of relay. Connect battery negative (–) terminal to
terminal "A" of relay. Check for continuity between
terminal "C" and "D". If there is no continuity when
relay is connected to the battery, replace integration
relay No.2 (1).
1
"C"
[A] [B]
"C"
[A]: A/T relay
[B]: HO2S heater relay
[C]: Compressor relay

Compressor Assembly On-Vehicle Inspection

1) Install manifold gauge set (1) as shown in the figure.
2) Close Hi (4) and Lo (5) side valves.
1
5
3
2. High pressure side (Delivery side hose)
3. Low pressure side (Suction side pipe)
"D"
"B"
"A"
[C]
"D" "B" "A"
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4
2
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3) Run engine at fast idle.
4) Check compressor for the following items.
If any of the checks indicated a defect, repair
compressor.
• High pressure gauge reading is not low and low
pressure gauge reading is not higher than normal.
• Metallic sound
• Leakage from compressor
Compressor Assembly Removal and
Installation for M16 Engine Model
Removal
1) Run engine at idle with A/C ON for 10 minutes.
2) Disconnect negative (–) cable at battery.
3) Recover refrigerant from the A/C system using
recovery and recycling equipment referring to
"Recovery" in "Operation Procedure for Charging A/
C with Refrigerant: ".
NOTE
The amount of compressor at removed must
be measured and the same amount must be
poured when installing the compressor.
4) Disconnect thermal protector lead wire.
5) Disconnect suction and discharge hoses from
compressor.
NOTE
Cap open fitting immediately to keep
moisture out of system.
6) Remove compressor drive belt referring to "P/S
Pump and A/C Compressor (If Equipped) Drive Belt
Removal and Installation for M16 Engine Model: in
Section 6C".
7) Remove compressor with clutch assembly from its
mount.
NOTE
If compressor assembly is replaced with one,
drain oil from compressor. Then, measure its
amount.
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