Page text (OCR transcript)
Circuit Opening Relay
To Ignition Switch (ST1)
ECU (STA)
ECU +B (UB1)
EFI Main Relay
FP
B
STA
+B
Check Connector
FP
FC
E1
Fuel Pump Switch
(Air Flow Meter)
(7M-GTE)
Fuel Pump
Control Relay
ECU
(7M-GTE)
F11305
INSPECTION OF CIRCUIT OPENING RELAY
1. INSPECT RELAY CONTINUITY
(a) Using an ohmmeter, check that there is continuity between terminals STA and E1.
(b) Check that there is continuity between terminals B and FC.
(c) Check that there is no continuity between terminals B and FP.
If continuity is not as specified, replace the relay.
Continuity
STA
B
No continuity
Continuity
FC
E1
FP
F11308
2. INSPECT RELAY OPERATION
(a) Apply battery voltage across terminals STA and E1.
(b) Using an ohmmeter, check that there is continuity between terminals B and FP.
Continuity
Battery
F11309
(c) Apply battery voltage across terminals B and FC.
(d) Check that there is continuity between terminals B and FP.
If operation is not as specified, replace the relay.
Continuity
Battery
F11310
