Checking
Checking with TECH 1
TECH 1, Connect to Vehicle
Before connecting the equipment, the directions in the TECH 1
Operating Instructions should be observed.
· Ignition OFF
· Connect TECH 1 to diagnostic plug in engine compartment
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| .P. C5607.tif | 9 | 7,5 | tiff;; |
The display shows in the relevant language:
· Type in Model Year (2 digits) e.g. "90" for MY 1990
· Select vehicle type with "YES" or "NO" key VECTRA/CAVALIER
· Answer display "STOP ENGINE TURN ON IGNITION" with "YES".
· Answer "AUTOMATIC SYSTEM IDENTIFICATION?" with "NO".
· Answer "SELECT ELECTRONIC ENGINE SYSTEM?" with "YES".
· Selection of engine type The Motronic control unit is now sending data to TECH 1.
If one or more trouble codes are stored in the control unit, they will now be shown in the display.
· Note trouble codes.
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· Select F0:DATA LIST with "YES" key
· Start engine, engine at operating temperature at idle speed.
· Compare all data displayed from test steps 01 to 28 or 01 to 35 with the following nominal values
- section 5.1.3.
· Actuate "EXIT" key and select F5:ACTUATOR TEST
Carry out checks
· If there are deviations from the nominal values, carry out trouble-sho oting according to instructions - sections 5.1.5 and 5.2.5
Notes:
| The program modules may only be changed or inserted with ignition OFF by pressing the two outer catches. | Fehler! Datei kann nicht geöffnet werden! | ||
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Trouble-shooting Chart
If these faults should occur, the test steps marked with an "x" must be examined more closely.
Customer Complaint
| Leaks/blockages (air or fuel) | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Starter turns, engine starts poorly or not at all | ||||||||||||||
| Engine starts but stalls again | ||||||||||||||
| Idling problems (engine speed, exhaust) | ||||||||||||||
| Poor acceptance of fuel, transitional problems | ||||||||||||||
| Engine misfiring (ignition, injection) | ||||||||||||||
| Poor engine performance/top speed | ||||||||||||||
| Fuel consumption too high | ||||||||||||||
| Engine diesels | ||||||||||||||
| Engine pings, knocks | ||||||||||||||
| Engine gets too hot | ||||||||||||||
| Transmission does not shift (AT vehicles only) | ||||||||||||||
| Warning lamp permanently or occasionally on | ||||||||||||||
| Possible Causes | Test Step No. | |||||||||||||
| * | * | BATTERY VOLTAGE | 01 F0:DATA LIST | |||||||||||
| * | VEHICLE SP.PULSE | 02 | ||||||||||||
| * | * | * | * | EXHAUST CODING (except C 30 SE) | 03 | |||||||||
| * | TRANSM. CODING | 04 | ||||||||||||
| * | * | * | INTAKE AIR TEMP. | 05 | ||||||||||
| * | * | * | * | * | * | * | * | COOLANT TEMP. | 06 | |||||
| * | * | * | * | * | * | * | AIR FLOW SENSOR | 07 | ||||||
| * | * | * | * | * | IDLE CO POT. (ECE) | 08 | ||||||||
| * | * | * | * | * | * | TPS SIGNAL | 09 | |||||||
| * | * | * | * | * | ENGINE LOAD SIG. (TV PWM signal) | 10 | ||||||||
| * | * | SIM. FULL POS.SW | 11 | |||||||||||
| * | * | * | SIM. IDLE POS.SW | 12 | ||||||||||
| * | * | * | * | * | * | * | * | * | * | INJECTION PULSE | 13 | |||
| * | * | * | * | * | ENGINE SPEED | 14 | ||||||||
| Leaks/blockages (air or fuel) | ||||||||||||||
| Starter turns, engine starts poorly or not at all | ||||||||||||||
| Engine starts but stalls again | ||||||||||||||
| Idling problems (engine speed, exhaust) | ||||||||||||||
| Poor acceptance of fuel, transitional problems | ||||||||||||||
| Engine misfiring (ignition, injection) | ||||||||||||||
| Poor engine performance/top speed | ||||||||||||||
| Fuel consumption too high | ||||||||||||||
| Engine diesels | ||||||||||||||
| Engine pings, knocks | ||||||||||||||
| Engine gets too hot | ||||||||||||||
| Transmission does not shift (AT vehicles only) | ||||||||||||||
| Warning lamp permanently or occasionally on | ||||||||||||||
| Possible Causes | Test Step No. | |||||||||||||
| * | * | * | * | SPARK ADVANCE | 15 | |||||||||
| * | * | TORQUE CONTROL | 16 | |||||||||||
| * | * | * | IAC PULSE RATIO | 17 | ||||||||||
| * | * | * | IAC INTEGRATOR | 18 | ||||||||||
| * | PARK/NEUTRAL SW. | 19 | ||||||||||||
| * | * | * | IAC BLOCK LEARN | 20 F0:DATA LIST | ||||||||||
| * | A/C INFORMAT. SW | 21 | ||||||||||||
| * | * | A/C COMPRESS. SW | 22 | |||||||||||
| * | * | ENG. OIL TEMP.SW | 23 | |||||||||||
| * | TRAN.OIL TEMP.SW | 24 | ||||||||||||
| * | * | * | RON CODING | 25 | ||||||||||
| * | * | FUEL PUMP RELAY | 26 | |||||||||||
| * | A/C CUTOFF RELAY | 27 | ||||||||||||
| * | * | * | * | O2 SENSOR LOOP and O2 SENSOR | 28/29 | |||||||||
| Leaks/blockages (air or fuel) | ||||||||||||||
| Starter turns, engine starts poorly or not at all | ||||||||||||||
| Engine starts but stalls again | ||||||||||||||
| Idling problems (engine speed, exhaust) | ||||||||||||||
| Poor acceptance of fuel, transitional problems | ||||||||||||||
| Engine misfiring (ignition, injection) | ||||||||||||||
| Poor engine performance/top speed | ||||||||||||||
| Fuel consumption too high | ||||||||||||||
| Engine diesels | ||||||||||||||
| Engine pings, knocks | ||||||||||||||
| Engine gets too hot | ||||||||||||||
| Transmission does not shift (AT vehicles only) | ||||||||||||||
| Warning lamp permanently or occasionally on | ||||||||||||||
| Possible Causes | Test Step No. | |||||||||||||
| * | * | * | * | * | O2 INTEGRATOR | 30 | ||||||||
| * | * | * | * | * | O2 BLM IDLE THR. | 31 | ||||||||
| * | * | * | * | * | O2 BLM PART THR. | 32 | ||||||||
| * | * | * | * | FUEL TANK VENT. | 33 | |||||||||
| * | * | * | * | HALL SENSOR (C 30 SE only) | 34 | |||||||||
| * | * | * | * | * | INT. MANIFOLD V. (C 30 SE only) | 35 | ||||||||
| * | * | Idle speed adjuster or circuit | 01 F5:ACTUATOR TEST | |||||||||||
| * | * | * | * | * | * | * | * | Injection valves or circuits | 02 | |||||
| * | * | * | * | Fuel tank vent valve or circuit | 03 | |||||||||
| * | * | * | Pick-ups/interference impulses | - | ||||||||||
| * | * | * | * | * | * | * | * | Control unit defective | - |