9-S4
MX5100, WSM
ELECTRICAL SYSTEM
EASY CHECKER
W1013580
GAUGES
W1082345
Symptom Probable Cause Solution
Reference
Page
Engine Oil Pressure
Lamp Lights Up
When Engine is
Running
Engine oil pressure too low Repair engine 1-S48
Engine oil insufficient Replenish G-19
Engine oil pressure switch defective Replace 9-S25
Short circuit between engine oil pressure switch
lead and chassis
Repair –
Circuit in panel board defective Replace G-16
Engine Oil Pressure
Lamp Does Not Light
When Main Switch is
Turned ON and
Engine Is Not
Running
Bulb blown Replace G-42
Engine oil pressure switch defective Replace 9-S25
Wiring harness disconnected or improperly
connected (between panel board and engine oil
pressure switch)
Repair or replace –
Circuit in panel board defective Replace G-16
Fuel Gauge Does Not
Function
Fuel gauge defective Replace G-16,
1-S28
Fuel level sensor (tank unit) defective Replace 9-S23
Wiring harness disconnected or improperly
connected (between panel board and fuel level
sensor)
Repair or replace –
Circuit in panel board defective Replace G-16
Coolant Temperature
Gauge Does Not
Function
Coolant temperature gauge defective Replace G-16,
1-S28
Coolant temperature sensor defective Replace 9-S24
Wiring harness disconnected or improperly
connected (between panel board and coolant
temperature sensor)
Repair or replace –
Circuit in panel board defective Replace G-16
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