QUICK-GLOW SYSTEM — Trouble Diagnosis / Parts Location
EF & EC-712prose procedureVehicle speed sensor is built into the speedometer (see EL section). Glow control unit located at driver's side dash side lower.
Trouble Diagnosis
Trouble Diagnosis — Engine symptom vs suspect parts
Cannot be started
Quick-glow control unitX
Glow relayX
Engine coolant temp sensorX
Glow plugX
Alternator
Key-in switchX
Ignition switchX
Glow indicator lamp
Fuse / Fusible linkX
BatteryX
Hard to start
Quick-glow control unitX
Glow relayX
Engine coolant temp sensorX
Glow plugX
Alternator
Key-in switchX
Ignition switchX
Glow indicator lamp
Fuse / Fusible linkX
BatteryX
White smoke after starting
Quick-glow control unitX
Glow relayX
Engine coolant temp sensorX
Glow plugX
AlternatorX
Key-in switch
Ignition switch
Glow indicator lamp
Fuse / Fusible linkX
BatteryX
Rough idle after starting
Quick-glow control unitX
Glow relayX
Engine coolant temp sensorX
Glow plugX
AlternatorX
Key-in switch
Ignition switch
Glow indicator lamp
Fuse / Fusible linkX
BatteryX
Water indicator does not come "ON"
Quick-glow control unitX
Glow relay
Engine coolant temp sensor
Glow plug
Alternator
Key-in switch
Ignition switchX
Glow indicator lampX
Fuse / Fusible linkX
BatteryX
Glow indicator does not go "OFF"
Quick-glow control unitX
Glow relay
Engine coolant temp sensor
Glow plug
Alternator
Key-in switch
Ignition switch
Glow indicator lamp
Fuse / Fusible link
BatteryX
NOTE
Before checking quick-glow system, check engine condition, fuel ingredients and fuel injection system.
Before checking component parts, check battery condition, fuse and fusible link.
When checking component parts, check their related harnesses and connectors at the same time.
Before replacing quick-glow control unit check all other component parts.