A/C - Defective Compressor Pick-Up Sensor
90honda03Model Applicable To
1990 See UNITS
PRELUDE AFFECTED
Si
File Under Bulletin No.
90-019
ACCESSORIES Issue Date JULY 27, 1990
A/C Compressor Pick-up Sensor Set Replacement
PROBLEM
Defective A/C compressor pick-up sensor.
UNITS AFFECTED
^ Preludes up to VIN JHMBA4...LC026715.
^ A/C Kits in your stock.
^ Sanden Compressors in your stock.
DIAGNOSIS
For Preludes up to the VIN listed:
If the A/C system is not working or if the warning light comes on a few seconds after the compressor cycles, measure resistance between the # 1 (GRN wire) and the # 3 (WHT wire) terminals of the compressor at the connector. If the resistance is not between 365 - 445 ohms at 20~ C (68~ F), go to CORRECTIVE ACTION.
For A/C Kits in your stock:
Check the A/C Kit box for a blue dot by the part number.
Blue dot: the replacement sensor set is in the box but needs to be installed on the compressor. (See NOTE below.)
No blue dot: check the A/C Kit number.
- If below PS005827: order a sensor set, see PARTS INFORMATION, and install it.
- If above PS005827: the replacement sensor set is already on the compressor.
For Sanden Compressors in your stock:
Check the compressor serial number.
Below 0319518: order a replacement sensor set, see PARTS INFORMATION, and install it on the compressor. (See NOTE below.)
NOTE: You will need a VIN for the warranty claim. Install the sensor when you are installing the A/C system in a car and use the car's VIN for the warranty claim.
CORRECTIVE ACTION
1. Evacuate the system using UL-listed recovery/recycling equipment.
See Service Bulletin 89-004, issued 5-11-90, Required Special Tools, Equipment and Service Manuals.
NOTE: Do not allow the refrigerant to escape into the atmosphere. The chlorofluorocarbons (CFC's) in the refrigerant destroy the ozone layer. For more information refer to the June 90 Service News.
2. Disconnect the negative battery terminal.
3. Remove the air filter box.
4. Disconnect the suction and discharge hoses from the compressor.
NOTE: Cap the compressor openings and hose ends immediately to prevent contamination.
5. Remove the upper pick-up sensor bolt.
6. Loosen the thermal protector bolt using an 8 mm flex socket, and move the bracket away from the thermal protector.
7. Disconnect the clutch wire.
8. Remove the thermal protector by prying it up with a small screwdriver. Remove any old silicone sealant from the thermal protector cup.
9. Raise the vehicle.
10. Remove the splash shield.
11. Disconnect the four pin connector and remove the lower sensor bolt using a 10 mm socket. Then, pull out the pick up sensor.
12. Install the replacement sensor set.
^ Lubricate the new thermal protector with silicone sealant.
^ Replace the O-rings with new ones.
13. Reinstall the other components and recharge the air conditioning system.
PARTS INFORMATION
Sensor Set
P/N 38908-PK3-A01, H/C 3428034
The set includes: connector, plate, bracket, and O-rings.
The improved sensor sets have a blue stripe on the four pin connector.
WARRANTY CLAIM INFORMATION
In warranty: The normal warranty applies.
Out-of-warranty: Any repair performed after warranty expiration may be eligible for goodwill consideration by the District Service Manager. You must request consideration, and get the DSM's decision. before starting work.
1. Use the warranty information below for failures occuring on A/C Kits that have been installed.
VIN number: VIN of unit with failure.
Operation num- 618155
ber:
Flat rate time: 1.5 hours Includes time for evacuation and recharging.
Failed part: P/N 38908-PK3-A01 H/C 3428034
Defect code: 072
Contention B02
code:
2. Use the warranty information below for sensor set installation on A!C compressors (serial numbers up to 0319518) and for A/C Kits (kit numbers up to PS005827) prior to vehicle installation.
VIN number: VIN of unit receiving updated kit.
Operation num- 618156
ber:
Flat rate time: 0.2 hour (exchange sensor only)
Failed part: P/N 38908-PK3-A01 H/C 3428034
Defect code: 072
Contention B02
code:
3. When updating your parts inventory, review Parts Information Bulletin number 90-0035 (5).