38MGRBQ: Service Manual
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
105
3 ELECTRICAL PARTS REMOVE THE ELECTRICAL PARTS REMARKS
1. Perform the steps from section 1, steps 5-6 and section 2.
2. Disconnect the fan motor connector(5p,white) from the
IPM board.
3. Disconnect the following 6 pieces of connection wires and
connectors between the IPM and other parts.
4. Remove the 4 screws, loosen the 4 hooks then remove the
IPM board.
5. Disconnect the connectors and wires connected from PCB
and other parts.
Connectors:
CN8: Discharge temperature sensor (2p,white)
CN12?FHeatsink temperature sensor(2p,red)
CN9:T3/T4 temperature sensor (2p/2p,white)
CN11:T2B-A,B,C,D,E temperature sensor (2p/2p/2p/
2p/2p,white)
CN15/CN23/CN26/CN30/CN33: Electronic expansion
valve (6p/6p/6p/6p/6p,red)
CN37/CN29/CN21/CN16/CN13/CN7: S-A,S-B,S-C,S-
D,S-E (3p/3p/3p/3p/3p,white)
CN10: High and low pressure switch (2p/2p, white)
Wires:
CN17/CN18: 4-way valve (blue-blue)
CN19/CN20: connected to crankcase heating cable.
(black-red)
CN24/CN25: Electric heater of chassis (orange-orange)
CN1:L-IN (red)
CN3:N-IN (black)
IPM board
PCB board
Adapter
CN3(red)
CN2(black)
,V(red),W(black)
CN9(10p,white)
CN8,CN5(3p)
CN7
CN13
CN16
CN21
CN29
CN37
CN8 CN12
CN9 CN11
CN3
CN10
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