Reading Input and Output Signals

READING INPUT AND OUTPUT SIGNALS

The values and status of Engine Control Module (ECM) input and output signals can be read with this function.

The following parameters are required:

-- Engine speed
-- Engine temperature
-- Engine Coolant Temperature (ECT) Sensor, voltage
-- Front Heated Oxygen Sensor (HO2S), voltage
-- Front Heated Oxygen Sensor (HO2S), heating
-- Rear Heated Oxygen Sensor (HO2S), voltage
-- Rear Heated Oxygen Sensor (HO2S), heating
-- Rear Heated Oxygen Sensor (HO2S), compensation
-- Fuel trim status
-- Short-term fuel trim
-- Fuel trim, part load
-- Fuel trim, idling
-- Fuel trim, status
-- Injection period
-- Mass Air Flow (MAF) Sensor, voltage
-- Load TI
-- Mass Air Flow (MAF) Sensor, air flow
-- Throttle angle
-- Throttle Position (TP) Sensor, voltage
-- Throttle, status
-- Idle Air Control (IAC) Valve, air flow
-- Idle air trim
-- Ignition timing
-- Ignition timing retardation requested by Transmission Control Module (TCM), status
-- Knock sensor 1, status
-- Knock sensor 2, status
-- Fuel enrichment, status
-- Battery voltage
-- Vehicle speed
-- A/C approved, status
-- A/C relay, status
-- A/C compressor, status
-- A/C pressure
-- A/C pressure sensor, voltage
-- Engine Cooling Fan (FC), status
-- Operating cycle, status
-- Trip, status
-- Warm-up cycle, status
-- Fault active, status
-- Malfunction Indicator Lamp (MIL) lit, status
-- Lighting of malfunction indicator lamp (MIL) requested by Transmission Control Module (TCM) status
-- Gear selector position, status
-- Canister Purge (CP) Valve
-- Fuel Pump (FP) relay, status
-- Fuel shut-off system, status
-- Accelerometer
-- Accelerometer, voltage
-- Pulsed Secondary Air Injection System (PAIR) Pump, status
-- Flywheel adaption, status
-- Flywheel adaption B
-- Flywheel adaption C
-- Flywheel adaption D
-- Flywheel adaption E
-- Temperature,control module
-- EVAP canister shut-off valve, status*
-- Fuel tank pressure*
-- Fuel tank pressure sensor, voltage*

* Only certain markets, USA and Canada