Cooling System: Wiring Saab 9-5 I рестайлинг

Check Wiring

Jiggle the wiring harness at several points and in different directions to reveal intermittent breaks and short-circuits in the wiring harness. Observe the multimeter, test lamp or diagnostic instrument while doing this.

Jiggle the wiring harness at several points and in different directions to reveal intermittent breaks and short-circuits in the wiring harness. Observe the multimeter, test lamp or diagnostic instrument while doing this.

Scheme 20

1. The customer's description of the problem constitutes a basis for the fault diagnosis strategy. If necessary, the customer must demonstrate the trouble on the car to avoid misunderstandings.
2. In certain cases, the function may be correct. 2.a. Good product knowledge is required to decide this. 2.b. If the function is correct, this must be explained to the customer.
3. If the function is judged to be faulty, the car should be repaired. Saab's fault diagnosis strategy assumes that the technician is familiar with the customer's description of the problem. So note the customer's complaint and any other observations on the job sheet.
4. The technician obtains a readout of the diagnostic trouble codes from all systems. A malfunction in one system can often be caused by a fault in another system.
5. The car may contain diagnostic trouble codes which are secondary faults or which have been incorrectly generated. 5.a. Compare the customer's complaint with the symptom descriptions for the various diagnostic trouble codes. EPSI has a fast search path for this. 5.b. If the symptom description for a diagnostic trouble code matches the customer's complaint, this diagnostic trouble code is probably caused by the primary fault. Repair as per instructions.
6. If there is no match with diagnostic trouble codes or symptoms, the technician must diagnose the fault himself. 6.a. In EPSI, search under fault diagnosis on the basis of symptoms in the system where the fault has occurred. 6.b. If the symptom description in the current system matches the complaint, the right fault diagnosis description has probably been found. Repair as per instructions.
7. Certain fault symptoms can be remedied by reprogramming the control module. 7.a. Does the customer complaint stem from a known software problem in a programmable control module? 7.b. Reprogram the control module following the instructions in SPS.
8. If there is no match with diagnostic trouble codes or symptoms, the technician must diagnose the fault himself. A final check must be carried out after the repair. Good technical product knowledge is required to solve this type of problem.
9. The car is ready.

Check The Wiring

Jiggle the wiring harness at several points and in different directions to reveal intermittent breaks and short-circuits in the wiring harness. Observe the multimeter, test lamp or diagnostic instrument while doing this.

Scheme 21

It has been found from experience that the majority of control modules returned for warranty repairs are in perfect working order. In these cases, changing the control module has obviously not cured the fault. Go through the following points before changing the control module

Scheme 22

1. Check all grounding points and the power supply to the control module.
2. Using the diagnostic instrument, check that all readouts are plausible.
3. Using the diagnostic instrument, check that all activation commands produce the correct results.
4. If the fault persists, the control module must be replaced.
5. Before handling the control module, it is important to ground yourself by touching the engine, for example. Avoid touching the control module's pins.

Scheme 23

86 12 798 Toolboard T1 Service

Used together with 30 05 469 Adapter, cooling system tester

TOOLS COMPATIBILITY DESCRIPTIONS

Scheme 24

Prevents runoff from cooling system hoses

86 12 798 Toolboard T1 Service

Group: Engine

TOOLS COMPATIBILITY DESCRIPTIONS

Scheme 25

Group: Engine

TOOLS COMPATIBILITY DESCRIPTIONS

Scheme 26

For unloading the belt tensioner

86 12 798 Toolboard T1 Service

Group: Engine

TOOLS COMPATIBILITY DESCRIPTIONS

Scheme 27

Contains cable terminals and the necessary pliers for their fitting and joining

Group: Test equipment

TOOLS COMPATIBILITY DESCRIPTIONS

Scheme 28

RADIATOR FAN MOTOR TECHNICAL DATA