Starting System Diagnostics - Dodge D150 1990 Service Manual

•
BATTERY/STARTING/CHARGING SYSTEMS DIAGNOSTICS 8A - 11
STARTING SYSTEM DIAGNOSTICS
TEST CONDITIONS
• PLACE GEAR SELECTOR IN PARK OR NEUTRAL AND SET PARK BRAKE OR EQUIVALENT.
• VARIFY BATTERY STATE-OF-CHARGE AND CRANKING CAPACITY, SEE BATTERY SECTION.
• CLEAN BATTERY TOP, POSTS, AND TERMINALS.
• VARIFY ALTERNATOR DRIVE BEIT TENSION.
• DISCONNECT AND GROUND COIL CABLE.
SYMPTOM SYMPTOM SYMPTOM SYMPTOM SYMPTOM
STARTER FAILS TO
ENGAGE. NO SOUNDS
STARTER FAILS TO
ENGAGE. SOLENOID
OR RELAY CLICKS
STARTER ENGAGES,
FAILS TO TURN ENGINE.
DOME LIGHT DIMS
STARTER ENGAGES
DRIVE CLUTCH
SPINS OUT
STARTER DOES NOT
DISENGAGE AFTER
ENGINE STARTS
POSSIBLE CAUSE POSSIBLE CAUSE POSSIBLE CAUSE POSSIBLE CAUSE
1
POSSIBLE CAUSE
STARTER CONTROL
CIRCUIT FAULTY.
SEE GROUP 8W,
WIRING DIAGRAMS
i
IGNITION SWITCH
MISADJUSTEDOR
FAULTY
i
RESISTANCE TO
HIGH IN STARTER
FEED CIRCUIT
i
STARTER CONTROL
CIRCUIT FAULTY
SEE GROUP 8W,
WIRING DIAGRAMS
i
RESISTANCE TO
HIGH IN STARTER
FEED CIRCUIT
i
STARTER RELAY
FAULTY
i
STARTER ASSEMBLY
FAULTY
1
DRIVE CLUTCH
FAULTY
BROKEN TEETH
ON RING GEAR
STARTER
I s SEMBLY
FAULTY
IGNITION SWITCH
MISADJUSTED
i
IGNITION SWITCH
FAULTY
i
STARTER RELAY
FAULTY
1
NEUTRAL SAFETY
SWITCH (AUTO TRANS.)
FAULTY OR
MISADJUSTED
STARTER RELAY
FAULTY
i
STARTER ASSEMBLY
FAULTY
1
STARTER ASSEMBLY
FAULTY
GEAR SELECTOR
PRNDL SWITCH
(A404 TRANS.)
FAULTY
1
STARTER RELAY
FAULTY
|
STARTER ASSEMBLY
FAULTY
• CONNECT COIL CABLE
• REFER TO APPROPRIATE GROUP AND SECTION OF THIS MANUAL
FOR PROPER SERVICE AND TEST PROCEDURES FOR THE
COMPONENTS INVOLVED
908Ar5