Test [52]

Air Conditioning (A/C) (Tempmatic)

Models 202 (as of MY 1999)

Quality Control and Heater Output Test Program

Test



1. Review 51/1
2. Temperature selector wheel in "white" field (22°)
3. Blower fan speed stage 3.
4. Set air distribution switch to 4 O'clock position.
5. Button is not illuminated.
6. Test duration> 15 minutes.
7. Engine rpm = 1,500 rpm.
8. Readout temperature measured by measuring probes.
9. Temperature measuring probe reads: 22+2°C

Note If the above noted measurements are not attained, continue test with B. "Heater Output Test"


Test



1. Review 51/1
2. Temperature selector wheel in "red field" detent.
3. Blower fan speed stage 5.
4. Set air distribution switch to 12 0'clock position (vertical).
5. Engine rpm = 2,000 rpm.
6. Test duration > 5 minutes.
7. Temperature measuring probe reads: > 55 °C

Note If the above noted measurements are not attained, the following components and functions must be checked:
- Coolant temperature
- Coolant circulation pump (M13)
- Calcium deposits within cooling system and heater core
- Duovalve (Y21)