Windscreen Wiper: Other Porsche Cayenne I

General instructions/safety instructions

Note. When bonnet lock is unlocked, the wiper motor is switched off or remains in parking position and cannot be switched on! This applies only for speeds of less than 5 km/h; the wiper can be actuated again in higher speeds for safety reasons.

Possible causes of fault

Note. The 'possible causes of fault' that are responsible for the fault are listed here. Please note that in certain circumstances further faults can be stored in the fault memory after troubleshooting (e.g. if plugs are disconnected). After carrying out repairs, read out the fault memory of all control modules and erase any faults.

Fault type

The following fault types are possible

1. No display
2. Upper limit value exceeded
3. Lower limit value not reached
4. Mechanical fault
5. No signal/communication
6. No or incorrect basic setting/adaptation
7. Short circuit to B+
8. Short circuit to ground
9. Implausible signal
10. Open circuit/short circuit to ground
11. Open circuit/short circuit to B+
12. Open circuit
13. Electrical fault in electric circuit
14. Please read out fault memory
15. Faulty
16. Cannot be checked now

Fault status

The following status types are possible

1. present
2. not present

This information should be saved using the Save key [F4] and printed out.

Tools

Scheme 110

Scheme 111

Scheme 112

Scheme 113

Connector assignment

Wiring harness plug for wiper motor with control module, 10-pin

Scheme 114

CONNECTOR TERMINALS REFERENCE CHART

Extract coding

Under the menu item "Extract coding" you can read out which equipment features are activated and which are not.

The following equipment features can be read out

1. Wiper with rain sensor
2. Wiper with rain/light sensor

Modify coding

Under the menu item "Modify coding" you can adapt the wiper motor control module to the current vehicle equipment.

After the wiper motor with control module is replaced, the coding must be adapted to the vehicle equipment so that the control module knows which sensor it can find on the sensor cable.

The following equipment features can be changed

1. Wiper with rain sensor
2. Wiper with rain/light sensor

Vehicle coding table

VEHICLE CODING CHART

Note. When the coding is changed in the menu item "Modify coding", the ignition must always be switched off afterwards and the key removed. After the ignition is switched on again, the new coding of the control module is updated and the stored faults can be erased. If it is not possible to communicate with the wiper motor control module in the headlight, this may be caused by incorrect coding. Remedy: Re-code the control module and restart connection setup using the Tester. Code control module correctly.

Note. If the coding does not match the vehicle equipment, faults will be displayed that are not really present. The wiper motor control module does not function without a valid coding entry.

1. An incorrect vehicle type was selected on the Porsche System Tester II No. 9588.
2. Power supply on the wiper motor is not OK.
3. Communication problem (K lead) with the gateway
4. Communication problem (CAN Infotainment) with the wiper motor control module

Affected pins

Plug for wiper motor wiring harness

1. Pin 7'CAN Infotainment (high)'
2. Pin 8'CAN Infotainment (low)'

Possible cause of fault

1. Wiper motor/control module faulty
2. Windscreen wiper on

1. Wiper blades, wiper arms or wiper mechanism frozen or blocked
2. Wiper blades, wiper arms or wiper mechanism restricted due to build-up of snow, ice or incorrect installation in wiper area
3. Heavy load due to snow or stiff mechanism

Note. This fault is set by the control module if more than 50 surmountable or unsurmountable blockages are detected (power consumption to speed). This may be caused by a build-up of snow during a heavy fall of snow.

1. No communication possible via CAN
2. Gateway faulty
3. KESSY control module faulty

Plug for wiper motor wiring harness: pin 7 and pin 8

1. No signals/communication with steering column switch via CAN Infotainment, gateway or CAN comfort
2. Steering column switch (with electronic unit) faulty

1. Wiper motor lead plug: pin 7 and pin 8

1. Windscreen or silicone cushion in the area of the rain sensor faulty or soiled
2. Rain sensor/light sensor does not fit windscreen (green glass/ insulating glass with IR protective film)
3. Rain sensor/light sensor not coded appropriately for windscreen in wiper motor control module
4. Power supply for rain sensor
5. Rain sensor faulty

Note. Different windscreen types are used, green glass and insulating glass with infrared protective film. The rain/light sensors must be assigned correctly according to the Spare Parts Catalogue "(PET)". The insulating glass can be recognized by the small 'IR' stamp for infrared.

1. Wiper motor plug: pin 5
2. Rain sensor/light sensor plug: pin 1 and pin 2

1. Communication problem with the gateway

Plug for wiper motor wiring harness

1. Pin 7 'CAN Infotainment (high)'
2. Pin 8 'CAN Infotainment (low)'

1. CAN Infotainment (faulty)
2. CAN Infotainment wires (faulty)

1. Wiper motor plug: pin 7 and pin 8

1. Windscreen or silicone cushion faulty or soiled
2. Open circuit or short circuit in signal lead
3. Rain sensor/light sensor faulty
4. Wiper control module or vehicle electrical system control module coded incorrectly (incorrect sensor selected)

1. Wiper plug: pin 5
2. Rain sensor/light sensor plug: pin 1, pin 2, pin 3