Mazda 121 Workshop Manual page 233

SELF-DIAGNOSIS FUNCTION
F
CODE No.
26 (SOLENOID VALVE - PURGE CONTROL)
STEP INSPECTION ACTtOl{
Disconnect conn€ctor from ECIJ
ls lherc baltery voltage at ECU terminal 2X wire
hamess (R/B) wnh ignilion swltch ON?
Check ECU terminal conneclor lo. poor connecrion
+
lI OK, replace ECU -
page F-112
+
,l not OK, repair or replace wiring
2
Keep condilion Step 1
ls there baflery vdrage al soleloid valve connec-
tor terminal-wire (A/8)?
(R/B)
3
ls solenoid valve OK?
F pago F-101
Check for shod or open circuit in wiing lrom main relay
(FUEL INJ relay) lo solenoid valve
Beplace solenoid valve
CODE llo.
34 (AIR BYPASS SOLENOID VALVE O)
STEP INSPECTION
ACTION
1 Disconnecl conneclor trorn ECU
ls there banery votage al ECU leminal 2T wire
harness (BM) with lgnition swtch ON?
Ch€ck ECU terminal connector lor poor conneclion
.)
ll OK, rcplace ECU
o page F-112
.> lf not OK, fepair or replace wiins
2
Keep condilion as Step 1
ls there baltery voltage at solenojd valve connec-
lor lerminalW.e (R/!9?
Repair wiring (R/Vr)
3
ls solenoid valve OK?
F page F-109
Ch€ck lor short or open circuil in wiring from main relay
(FUEL INJ relay) to sol€noid valve
NO Replace soleno d valve
Clrcuit Diagram
FFIOM BATTERY
FROM IGNITION SWITCH
SOLENOID VAIVE
SoLENOID VALVE €),
soLENolo vAtvE i
(PUFGE COMIFOL)ii
SOLENOIO VALVE
(PUNGE CONTROL)
F-77