Isuzu NHR 4J Series Workshop Manual page 20

00 – 16 SERVICE INFORMATION
FAULTY MESHING OF PINION AND RING GEAR
CHECK IF BATTERY VOLTAGE IS PRESENT AT
MAGNETIC SWITCH TERMINAL "S" WHEN
STARTER SWITCH IS TURNED TO "START (ST)"
YES
OR
EXTREME WEAR OF
PINION AND RING
GEAR
REPAIR OR REPLACE
STARTER, REPLACE
RING GEAR
STARTER SLIDING
RESISTANCE IS
LARGE
REPAIR OR REPLACE
STARTER
NO
UNDER THIS CONDITION, CHECK IF VOLTAGE
OF CONNECTOR 3BW ON MAGNETIC SWITCH
OF RESTART RELAY IS NORMAL
YES
DISCONNECTION OR
FAULTY CONNECTION
BETWEEN STARTER
SWITCH AND MAGNETIC
SWITCH
REPAIR
YES
FAULTY CONNECTION OF
STARTER SWITCH
REPLACE STARTER
SWITCH
NO
CHECK IF VOLTAGE IS
PRESENT AT WIRING
CONNECTOR 3BW ON
STARTER SWITCH OF
RESTART RELAY
NO
DISCONNECTION OR
FAULTY CONNECTION
BETWEEN STARTER
SWITCH AND BATTERY
REPAIR