Flow chart
(1150) pre-post heat box
(1160) pre-heater plugs
(1320) engine management ECU
(V1150) pre-heating warning light
Pre-heater plugs (1160)
Role
The pre-post heating glow plugs allow a rapid temperature rise in the combustion chambers during the starting phase
Description
11 volt pre-heater plugs
Total length of 107 mm
Composition of the pre-heat glow plugs
- A heating resistor
- A metallic protective cover
Pre-post heat box (1150)
Role
The housing supplies the pre-heating plugs with electricity following the injection ECU's commands
Description
The pre-post heating times are determined by the injection ECU
If the pre-heater control unit develops a fault, the injection ECU will memorise the fault
Electrical special features
Allocation of channels of connector
- Line N° 1: earth
- Line N° 2: line unused
- Line N° 3: after ignition +12 volts
- Line N° 4: engine check ECU input
- Line N° 5: pre-heater control unit diagnostic
- Line N° 8: permanent +12 volts
- Line N° 9: supply to the glow plugs
Location
Depending on vehicle