Explanations
TECH 1 Displays
BATTERY VOLTAGE Battery voltage (voltage supply of control unit)
TPS SIGNAL Signal from throttle valve potentiometer
SIM. IDLE POS. SW Idle position of throttle valve potentiometer
SIM. FULL POS. SW Full load position of throttle valve potentiometer
INTAKE AIR TEMP. Intake air temperature
COOLANT TEMP. Coolant temperature
MASS AIR FLOW S. Hot film mass air flow meter signal
KNOCK SIGNAL Signal from knock sensor when knock occurs
IGN. / INJ. CUTOFF Signal, switch off ignition / injection from TC (Traction Control) System
HALL SENSOR Hall sensor on camshaft
VEHICLE SPEED Processed signal from rear left wheel speed sensor
VEHICLE SP. PULSE Signal from rear left wheel speed sensor
A / C INFORMAT. SW Air conditioning switch
A / C COMPRESS. SW Air conditioning compressor
PARK / NEUTRAL SW. Processed park / neutral switch signal from transmission management
TORQUE CONTROL Shift process signal from transmission management
IGN. COIL CYL1+4 Ignition coil unit, cylinders 1 and 4
IGN. COIL CYL2+5 Ignition coil unit, cylinders 2 and 5
IGN. COII, CYL3+6 Ignition coil unit, cylinders 3 and 6
ENGINE LOAD SIG. Processed signal from throttle valve potentiometer
TPS LOAD SIGNAL Processed signal from throttle valve potentiometer
FUEL PUMP RELAY Fuel pump relay
A / C CUTOFF RELAY AC cutoff relay for AC compressor cutoff
FUEL TANK VENT. Tank vent valve = Controlled canister purge valve
INT. MANIFOLD V.1 Intake pipe switchover (MULTI RAM) Intake plenum switchover valve
INT. MANIFOLD V.2 Intake pipe switchover (MULTI RAM) Resonance valve
SEC. AIR PUMP REL Secondary air pump relay
EGR SOLENOID EGR (exhaust gas recirculation) solenoid valve
EGR PULSE RATIO Pulse ratio, EGR solenoid valve
EGR POS. FDBK Position signal, EGR solenoid valve (from response potentiometer in EGR solenoid valve)
ENGINE TYPE Engine version display
TRACTION CONTROL Traction Control
TRANSM. CODING Transmission recognition Manual or automatic transmission vehicle
ENGINE SP. PULSE Ignition pulse for tachometer
DESIRED IDLE Nominal engine speed in idle operation
ENGINE SPEED Actual engine speed in idle operation
DESIRED AIR IDLE Nominal air throughput in idle operation (from characteristic map)
ACTUAL AIR IDLE Actual air throughput in idle operation (from mass air flow meter signal)
IDLE AIR CONTROL Control of idle speed adjuster position (see F8: ECU CONTROL)
IAC ADAPT. SLOPE Deviation of pulse ratio of idle speed adjuster from value calculated by control unit
IAC INTEGRATOR Integrator value of idle speed adjuster
IAC BLOCK LEARN Learn value of idle speed adjuster
02 SENSOR LOOP 1 Open / closed loop 1 via oxygen sensor 1 (left)
02 SENSOR LOOP 2 Open / closed loop 2 via oxygen sensor 2 (right)
02 SENSOR 1 Oxygen sensor voltage in mV, oxygen sensor 1 (left)
02 SENSOR 2 Oxygen sensor voltage in mV, oxygen sensor 2 (right)
AIR / FUEL RATIO 1 Fuel / air ratio in loop 1 (right cylinder bank)
AIR / FUEL RATIO 2 Fuel / air ratio in loop 2 (left cylinder bank)
02 INTEGRATOR 1 Integrator value of mixture (02) correction in loop 1 (right cylinder bank)
02 INTEGRATOR 2 Integrator value of mixture (02) correction in loop 2 (left cylinder bank)
02 BLM IDLE 1 Learned mixture characteristic map for idle speed in loop 1 (right cylinder bank)
02 BLM IDLE 2 Learned mixture characteristic map for idle speed in loop 2 (left cylinder bank)
02 BLM PART 1 Learned mixture characteristic map for partial load range in loop 1 (right cylinder bank)
02 BLM PART 2 Learned mixture characteristic map for partial load range in loop 2 (left cylinder bank)
SPARK ADVANCE Firing angle BTDC calculated by control unit
KNOCK RETARD Ignition adjustment for cylinders when knock occurs
INJECTION PULSE Injection period in ms
CHECK LIGHT Engine telltale
DIAG. REQUEST Excitation lead for blink code readout (diagnostic plug Ter. B)
INJECTOR CUTOFF Injector cutout (see F8: ECU CONTROL)
SELECT RESET Reset of learn parameters for oxygen sensor
02 BLM CELLS regulation (see F6: ECU ADJUSTMENT)
SELECT RESET Reset of learn parameters for idle regulation
IAC BLM (see F6: ECU ADJUSTMENT)
SELECT CONTROL Adjustment of idle speed
RPM CONTROL (see F8: ECU CONTROL)
SELECT CONTROL Adjustment of idle speed adjuster position
IDLE AIR CONTROL (see F8: ECU CONTROL)
SELECT CONTROL Injector cutout
INJ. CONTROL (see F8: ECU CONTROL)