LEMON Manuals
: Even more car manuals for everyone: 1960-2025
Home
>>
Jaguar
>>
1989
>>
XJ-S V12-5.3L
>>
Repair and Diagnosis
>>
Powertrain Management
>>
Computers and Control Systems
>>
Relays and Modules - Computers and Control Systems
>>
Engine Control Module
>>
Description and Operation
>>
Ignition ECM
>>
Operating Modes
>>
Engine Starting
April 5, 2026:
LEMON Manuals is launched!
Read the announcement.
Engine Starting
Timing during cranking and start-up is chosen from an ECU program linked to engine speed sensor and coolant temperature sensor inputs.