SPECIAL TOOLS
ENGINE COOLING
14-3
SPECIAL TOOLS
M1141000600592
Tool Number Name Use
MB991223
A
D
C
B
AZ
DO NOT USE
MB991223
A: MB991219
B: MB991220
C: MB991221
D: MB991222
Harness set
A: Check harness
B: LED harness
C: LED harness
adapter
D: Probe
Making voltage and
resistance measurement
during troubleshooting
A: Connector pin contact
pressure inspection
B: Power circuit inspection
C: Power circuit inspection
D: Commercial tester
connection
MB992006
MB992006 Extra fine probe Making voltage and
resistance measurement
during troubleshooting
MB991871
MB991871 LLC changer Coolant refilling
TROUBLESHOOTING
INSPECTION CHART FOR TROUBLE
SYMPTOMS
M1141005600434
Trouble symptom Inspection
procedure No.
Reference page
Cooling fan does not operate 1
P.14-4
Cooling fan does not change speed or does not stop 2
P.14-10