Sentra L4-1597cc 1.6L DOHC MFI (GA16DE) (1991)
Air Conditioning Switch: All Technical Service Bulletins
A/C Switch - Inoperative
Classification:
HA91-005
Section:
Heater & Air Conditioner
Reference:
TECHNICAL BULLETIN NTB91-032
Models:
1991 Sentra
Date:
March 21, 1991
1991 SENTRA A/C SWITCH INOPERATIVE
APPLIED MODEL: 1991 Sentra, non-GXE
APPLIED PRODUCTION DATES: up to 11-01-90
Figure 1
SERVICE INFORMATION:
Some 1991 Sentras with factory or dealer-installed air conditioning may exhibit problems with the A/C On/Off switch. There are two separate incidents
that may occur. These incidents may become obvious during A/C kit installation, or after the vehicle is sold to the customer.
Incident # 1:
The A/C switch may become loose and push into the heater
control assembly. This occurs because the switch retaining clip is broken or missing (Figure 1).
Incident # 2:
The A/C switch either sticks in the depressed position
and will not turn OFF, or will not stay locked in the ON position. This occurs because of a faulty detent mechanism
inside the switch.
PARTS INFORMATION:
An improved retaining clip is now available as a separate service part.
PART NAME
PART NUMBER
OUANTITY
For Incident # 1, order:
Retaining Clip
27553-50Y00
1
For Incident # 2, order:
Retaining Clip
27553-50Y00
1
A/C Switch
27670-65Y00
1
REPAIR PROCEDURE:
1.
Remove the center cluster lid. Refer to the 1991 Sentra Service Manual, BF-44.