Trouble Diagnoses — Diagnostic Procedure 13 (Cont'd)
EF & EC-109flowchartIdle speed spec differs by transmission: M/T 950±50 rpm, A/T 900±50 rpm when A/C switch is ON.
Diagnostic Procedure 13 (Cont'd)
1
INSPECTION START
2
A — CHECK INPUT SIGNAL.
1) Start and warm up engine sufficiently.
2) Does engine revolution rise when air conditioner switch is turned "ON"?
Yes
CHECK IDLE SPEED WHEN AIR CONDITIONER SWITCH IS "ON".
CHECK IDLE SPEED WHEN AIR CONDITIONER SWITCH IS "ON".
M/T: 950±50 rpm
A/T: 900±50 rpm
If out of specification, adjust idle speed.
(See page EF & EC-25.)
No
3
B — CHECK POWER SOURCE.
1) Stop engine.
2) Disconnect F.I.C.D. solenoid valve harness connector.
3) Turn ignition switch "ON".
4) Check voltage between terminal (a) and ground when air conditioner switch is turned "ON".
Air conditioner ON: Battery voltage
Air conditioner OFF: 0V
N.G.
CHECK CONTINUITY BETWEEN AIR CONDITIONER RELAY AND F.I.C.D. SOLENOID VALVE.
CHECK CONTINUITY BETWEEN AIR CONDITIONER RELAY AND F.I.C.D. SOLENOID VALVE.
Refer to HA section.
O.K. (battery voltage when ON, 0V when OFF)
4
C — CHECK GROUND CIRCUIT.
1) Turn ignition switch "OFF".
2) Check resistance between terminal (b) and ground.
Resistance: Approximately 0Ω
N.G.
Repair harness or connectors.
O.K.
5
CHECK COMPONENT (F.I.C.D. solenoid valve).
Refer to "Electrical Components Inspection".
(See page EF & EC-127.)
N.G.
Replace F.I.C.D. solenoid valve.
O.K.
INSPECTION END
Power Source Voltage Check — Terminal (a) vs Ground
ON
Voltage between terminal (a) and groundBattery voltage
OFF
Voltage between terminal (a) and ground0V
| Specification | Value |
|---|---|
| Idle speed with A/C ON (M/T)Air conditioner switch ON, engine warmed up, M/T | 950±50rpm |
| Idle speed with A/C ON (A/T)Air conditioner switch ON, engine warmed up, A/T | 900±50rpm |
| Ground circuit resistance — terminal (b) to groundIgnition switch OFF | Approximately 0Ω |
Idle speed with A/C ON (M/T)Air conditioner switch ON, engine warmed up, M/T
950±50rpm
Idle speed with A/C ON (A/T)Air conditioner switch ON, engine warmed up, A/T
900±50rpm
Ground circuit resistance — terminal (b) to groundIgnition switch OFF
Approximately 0Ω