Make sure the correct test lead (?or ?) is placed on the terminal.
When checking for continuity across the diode, use the diode setting () on the digital volt/ohm meter to check the diode bias.
Note this important operating characteristic; diode bias causes a diode to fully conduct electricity in one direction (forward), while not at all in the opposite direction (reverse).
A/C condenser fan relay
There should be continuity between terminals B5 and B13 when battery power is connected to terminal C6, and body ground is connected to terminal C5. There should be no continuity between terminals B5 and B13 when power is disconnected.
Fan control relay
There should be continuity between terminals B14 and B6 when battery power is connected to terminal C9 (, C10, or C8), and body ground is connected to terminal C5. There should be continuity between terminals B14 and B13 when power is disconnected.
Radiator fan relay
There should be continuity between terminals B7 and B1 when battery power is connected to terminal C9 (, C10, or C8), and body ground is connected to terminal B8. There should be no continuity between terminals B7 and B1 when power is disconnected.
Taillight Relay
There should be battery voltage at terminal A3 when battery power is connected to terminal A7, and body ground is connected to terminal A6. There should be no voltage at terminal A3 when terminal A6 is disconnected.
Windshield wiper high/low relay
There should be continuity between terminals B11 and B3 when battery power is connected to terminal C7, and body ground is connected to terminal B4. There should be no continuity between terminals B11 and B3 when power is disconnected.
Windshield wiper intermittent relay
There should be continuity between terminals B10 and B2 when battery power is connected to terminal C7, and body ground is connected to terminal B12. There should be no continuity between terminals B10 and B2 when power is disconnected.
Starter cut relay (without keyless access system)
There should be battery voltage at terminal A2 when battery power is connected to terminal A1, and battery ground is connected to terminal A5. There should be no voltage at terminal A2 when terminal A5 is disconnected.
Starter cut relay 1 (with keyless access system)
There should be continuity between terminals A1 and A8 when battery power is connected to terminal A4, and battery ground is connected to terminal A5. There should be no continuity between terminals A1 and A8 when power is disconnected.
Starter cut relay 2 (with keyless access system)
There should be continuity between terminals A8 and A2 when battery power is connected to terminal A4, and battery ground is connected to terminal B9. There should be no continuity between terminals A8 and A2 when power is disconnected.
2.
If any of these relay circuit fails the test, replace the relay circuit board.
