Opel Frontera UBS. Service manual — part 1258

SERVICE INFORMATION 00 – 15

ENGINE ELECTRICAL

Check if the battery is normal, then perform the following diagnosis.

STARTER DOES NOT RUN

CHECK BATTERY

CHARGING FAILURE OR LIFE

CHECK BATTERY

BATTERY IS NORMAL

CHECK TERMINAL CONNECTION

CONNECTION FAILURE

CLEAN BATTERY TERMINALS, AND RECONNECT

TERMINAL CONNECTION IS NORMAL

CHECK STARTER OR STARTER SWITCH

FAILURE

REPAIR OR REPLACE

TURN ON HEAD LAMP AND STARTER SWITCH

HEAD LAMP DOES NOT COME ON
OR IT IS EXTREMELY DARK

a) LACK OF BATTERY CHARGING
b) SHORT-CIRCUIT IN STARTER COIL
c) FAULTY STARTER PARTS

HEAD LAMP ILLUMINATES

a) DISCONNECTED STARTER CIRCUIT
b) DISCONNECTED STARTER COIL
c) FAULTY STARTER SWITCH

00 – 16 SERVICE INFORMATION

FAULTY MESHING OR PINION AND RING GEAR

CHECK IF BATTERY VOLTAGE IS PRESENT AT
MAGNETIC SWITCH TERMINAL “S” WHEN
STARTER SWITCH IS TURNED TO “START (ST)”

YES

NO

EXTREME WEAR OF
PINION AND RING
GEAR

STARTER SLIDING
RESISTANCE IS
LARGE

REPAIR OR REPLACE
STARTER. REPLACE
RING GEAR

REPAIR OR REPLACE
STARTER

UNDER THIS CONDITION, CHECK IF VOLTAGE
OF CONNECTOR 3BW ON MAGNETIC SWITCH
OF RESTART RELAY IS NORMAL

DISCONNECTION OR
FAULTY CONNECTION
BETWEEN STARTER
SWITCH AND MAGNETIC
SWITCH

CHECK IF VOLTAGE IS
PRESENT AT WIRING
CONNECTOR 3BW ON
STARTER SWITCH OF
RESTART RELAY

YES

NO

REPAIR

YES

NO

FAULTY CONNECTION
OF STARTER SWITCH

DISCONNECTION OR
FAULTY CONNECTION
BETWEEN STARTER
SWITCH AND BATTERY

REPLACE STARTER
SWITCH

REPAIR

OR

SERVICE INFORMATION 00 – 17

MAGNETIC SWITCH DOES NOT OPERATE THOUGH
STARTER SWITCH IS TURNED TO “START (ST)”

CHECK IF VOLTAGE IS PRESENT AT MAGNETIC
SWITCH TERMINAL “S” WHEN STARTER SWITCH
IS TURNED TO “START (ST)”

YES

NO

CHECK IF INDICATOR LAMP ON
METER COMES ON NORMALLY

CHECK CONTINUITY
STARTER SWITCH AND
MAGNETIC SWITCH
TERMINAL “S”

DISCONNECTION OR
FAULTY CONNECTION
BETWEEN BATTERY
AND STARTER SWITCH

YES

NO

CHECK GROUND CABLE

YES

NO

PINION
SLIDING
PART DOES
NOT MOVE

MAGNETIC SWITCH
OR COIL IS
DISCONNECTED
OR BURNED OUT

REPAIR

REPAIR OR REPLACE STARTER

REPAIR

CHECK STARTER
RELAY

FAULTY CONNECTION
OR STARTER SWITCH

CHECK CLUTCH
START SWITCH

REPLACE STARTER
SWITCH

OR

00 – 18 SERVICE INFORMATION

PINION MESHES WITH RING GEAR BUT
ENGINE DOES NOT RUN

CHECK GROUND CABLE

YES

NO

REPAIR OR REPLACE
GROUND CABLE

FAULTY CONNECTION
OF BRUSH AND
COMMUTATOR

BURNED-OUT
MAGNETIC
STARTER SWITCH

DISCONNECTION
OR DAMAGE OF
FIELD COIL

DISCONNECTION
OR DAMAGE OF
ARMATURE COIL

SLIP OF
PINION
CLUTCH

REPAIR OR REPLACE STARTER