Volvo CIS system Service Repair Manual

Repairs and maintenance. Constant Idle Speed System (CIS) 1981-.

The system is comprised of the following main components:

• Electronic Control Unit.
• Air Control Valve.
• Throttle switch.
• Coolant temperature sensor.
• Distributor (via ignition coil).

The Electronic Control Unit processes information on engine temperature, engine speed and throttle position. It controls engine at idle or near idle by regulating the Air Control Valve.

CONTENTS

• Introduction
• System description
• Specifications
• Fault tracing CIS system
• Basic setting of
• Constant Idle Speed system:
  • -B21F1981
  • – B21F-MPG 1981, B21F Cl 1982
  • – B21F Turbo, 1981-
  • – B21F LH-Jetronic 1982
  • – B28F 1981, 1982
• Wiring Diagrams:
  • – B21F, typical
  • – B2IF LH-Jetronic
  • – B21F-Turbo
  • – B28F

Language: English
Format: PDF
Pages: 50

Volvo CIS system Service Repair Manual