Diagnostic Procedure 34 (Cont'd) - AIR REGULATOR
EF & EC-505flowchartSR20DE. Power supply and ground terminals differ between R.H.D. and L.H.D. models; harness connectors differ likewise (L.H.D.: E225/E7, E224/E5; R.H.D.: E29/E6).
TROUBLE DIAGNOSES
Diagnostic Procedure 34 (Cont'd)
Diagnostic Procedure 34 - AIR REGULATOR
1
INSPECTION START
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A. CHECK CONTROL FUNCTION. 1) Turn ignition switch "ON". 2) Listen to fuel pump operating sound. Fuel pump should operate for 5 seconds after ignition switch is turned "ON".
N.G.
Check fuel pump control circuit. (See page EF & EC-500.)
O.K.
3
B. CHECK POWER SUPPLY. 1) Turn ignition switch "OFF". 2) Disconnect air regulator harness connector. 3) Turn ignition switch "ON". 4) Check voltage between terminal a (R.H.D. models), terminal b (L.H.D. models) and ground. Battery voltage should exist for 5 seconds after ignition switch is turned "ON".
N.G.
Check the following. - Harness connectors E225, E7 (L.H.D. models) - Harness connectors E29, E6 (R.H.D. models) - Harness continuity between air regulator and fuel pump relay If N.G., repair harness or connectors.
Check the following. - Harness connectors E225, E7 (L.H.D. models) - Harness connectors E29, E6 (R.H.D. models) - Harness continuity between air regulator and fuel pump relay If N.G., repair harness or connectors.
O.K.
4
C. CHECK GROUND CIRCUIT. 1) Turn ignition switch "OFF". 2) Check harness continuity between terminal b (R.H.D. models), terminal a (L.H.D. models) and body ground. Continuity should exist.
N.G.
Check the following. - Harness connectors E224, E5 (L.H.D. models) - Harness continuity between air regulator and body ground If N.G., repair harness or connectors.
Check the following. - Harness connectors E224, E5 (L.H.D. models) - Harness continuity between air regulator and body ground If N.G., repair harness or connectors.
O.K.
5
CHECK COMPONENT (Air regulator). Refer to "Electrical Components Inspection". (See page EF & EC-634.)
N.G.
Replace air regulator.
O.K.
INSPECTION END