Diagnostic Procedure 14 (Cont'd) - Idle-Up Control Solenoid Valve
EF & EC-117flowchartApplies to GA13DS, GA14DS & GA16DS. Engine cold temperature threshold: below 75 deg C (167 deg F).
E.C.C. TROUBLE DIAGNOSES (Models with catalyzer and E.G.R.)
Diagnostic Procedure 14 (Cont'd)
NOTE
Applicable to models GA13DS, GA14DS & GA16DS.
Diagnostic Procedure 14 - Idle-Up Control Solenoid Valve
1
INSPECTION START
2
CHECK OVERALL FUNCTION. 1) Make sure that engine is cold. [Engine temperature is below 75 deg C (167 deg F).] 2) Turn ignition switch ON. 3) Listen to idle-up control solenoid valve operating sound. Clicking noise should be heard.
O.K.
INSPECTION END
N.G.
3
CHECK POWER SUPPLY. 1) Turn ignition switch OFF. 2) Disconnect carburetor harness connector F8. 3) Turn ignition switch ON. 4) Check voltage between terminal b and ground. Voltage: Battery voltage
N.G.
Check the following. - Harness connectors F33, M37 - 10A fuse - Harness continuity between carburetor and fuse. If N.G., repair harness, fuse or connectors.
O.K.
4
CHECK OUTPUT SIGNAL CIRCUIT. 1) Turn ignition switch OFF. 2) Disconnect E.C.U. harness connector. 3) Check harness continuity between E.C.U. terminal 112 and terminal e. Continuity should exist.
N.G.
Repair harness or connectors.
O.K.
5
CHECK COMPONENT (Idle-up control solenoid valve). Refer to Electrical Components Inspection. (See page EF & EC-145.)
N.G.
Replace idle-up control solenoid valve.
O.K.
6
Check E.C.U. pin terminals for damage or the connection of E.C.U. harness connector.