RX7 2RTR- 1308cc 1.3L FI (1987)
Blower Motor Relay: Testing and Inspection
Blower Resistor And Heater Relay
BLOWER RESISTOR
1.
Disconnect blower resistor harness from blower resistor.
2.
Using an ohmmeter, measure resistance between terminals [a] and [b]. Fig. A Resistance should be:
Approximately 2.2-2.6 Ohms at 68° F (20° C)
3.
If resistance is not within specifications, replace blower resistor and recheck.
HEATER RELAY
1.
Disconnect heater relay connector.
2.
Connect positive battery lead to terminal [f] and negative lead to terminal [c]. Fig. E
3.
Using an ohmmeter, check for continuity between [a] and [e].
4.
Remove positive battery lead from terminal [f] and negative lead from terminal [c].
5.
Using an ohmmeter, check for continuity between [a] and [b].
6.
If relay does NOT have continuity in either test, replace relay and retest.