Sidekick 4WD L4-1590cc 1.6L SOHC 0 TBI 8V (1990)
EFE Relay: Testing and Inspection
1.
Remove PTC heater relay with coupler connected.
2.
With ignition switch Off, disconnect ECM coupler.
Fig. 144 Checking Voltage At PTC Relay
3.
Turn ignition switch On, check voltage at A, C and D terminals using voltmeter, Fig. 144. Battery voltage should be present at all terminals. If
battery voltage is not present, light green/red wire or white/blue wire may be open or white/green wire is shorted to ground.
Fig. 145 Checking PTC Relay Operation
4.
Using same gauge wire as used for relay circuit, connect D terminal and ground, Fig. 145, then turn ignition switch On. Relay should operate and
battery voltage should be applied to terminal B.
5.
If test in step 4 is not satisfactory, replace PTC heater relay.
