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Park Assist: Other Porsche Cayenne I

Collision/avoidance 8 illustrations ~2448 words

General instructions/safety instructions

WARNINGDanger of injury and damage to the vehicle when the vehicle is in motion. Never step in front of or behind a vehicle unless it is in gear and the parking brake is applied to prevent it from rolling. The system is subject to physical detection limits and does not free the driver from his/her responsibility to be careful! The system cannot detect short, thin and small obstacles and persons who are lying on the ground. It also cannot detect surfaces with unfavorable reflective characteristics, e.g. snow or glass.
WARNINGDanger of injury and damage due to unusual vehicle handling when plugs or components are disconnected! Never disconnect plugs when the vehicle is in motion or drive the vehicle with plugs disconnected. Drive only with all parts fully installed and connected.

Note. The rear ParkAssist system is inoperable when a trailer is hitched (plug with load in the trailer socket). A warning tone is issued if the system is faulty. This tone differs from the continuous tone that is issued when an obstacle is detected. External weather conditions such as ice, snow or dirt can also impair the functioning of the sensors and result in a fault being stored.

CAUTIONDanger of damage due to improper handling of batteries and control unit plug connections! Never disconnect battery with engine running. Never start engine if battery terminal clamps are not connected securely Never puff off or push on plug connections for the control units or other electronic components when the ignition is switched on Always disconnect the negative terminal of the battery and pull off all plug connections to the vehicle electrical system control unit when carrying out welding work on the vehicle

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 units 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 Erase fault memory Satisfy the requirements listed under 'Diagnostic conditions'. Read out fault memory again

Tools

WARNINGDanger of personal injury while working with special tools.
  1. 9588 Never hang the Porsche System Tester II over the steering Wheel.

Note. Plug contacts are optimally designed to suit the plug system. Operations on pins can cause contact problems. Always use suitable measurement tools for adapter plugs and test cables.

Battery charging device

Refer to equipment instructions.

Scheme 1

Scheme 1: Battery charging device
Scheme 1: Battery charging device

Scheme 2

Scheme 2: 9588 Porsche System Tester II
Scheme 2: 9588 Porsche System Tester II

Scheme 3

Scheme 3: Commercially available digital multimeter
Scheme 3: Commercially available digital multimeter

Scheme 4

Scheme 4: 9684 Measurement tool set
Scheme 4: 9684 Measurement tool set

Scheme 5

Scheme 5: Component arrangement
Scheme 5: Component arrangement

Connector assignment for ParkAssist control module

Connector A, 20-pin

Scheme 6

Scheme 6: Connector assignment for ParkAssist control module
Scheme 6: Connector assignment for ParkAssist control module
PinDesignationPinDesignation
1Terminal 302CAN comfort (high)
3CAN comfort (low)4ParkAssist display field (LED segments) ground
5ParkAssist display field (LED segments) supply voltage6ParkAssist display field (LED segments) signal
7Not used8Not used
9ParkAssist buzzer supply voltage10ParkAssist buzzer signal
11Terminal 3112ParkAssist switch (button) ground
13ParkAssist LED switch (button) function light voltage supply14ParkAssist switch (button) signal
15Terminal 1516Not used
17Not used18Not used
19Not used20Not used

CONNECTOR PINOUTS REFERENCE

Connector B, 16-pin

Scheme 7

Scheme 7
Scheme 7
PinDesignationPinDesignation
1Ground for front ParkAssist sensors2Voltage supply for front ParkAssist sensors
3Outer front left ParkAssist sensor 1 signal4Centre front left ParkAssist sensor 2 signal
5Inner front left ParkAssist sensor 3 signal6Inner front right ParkAssist sensor 4 signal
7Centre front right ParkAssist sensor 5 signal8Outer front right ParkAssist sensor 6 signal
9Ground for rear ParkAssist sensors10Supply voltage for rear ParkAssist sensors
11Outer rear right ParkAssist sensor 7 signal12Centre rear right ParkAssist sensor 8 signal
13Inner rear right ParkAssist sensor 9 signal14Inner rear left ParkAssist sensor 10 signal
15Outer rear left ParkAssist sensor 12 signal16Outer rear left ParkAssist sensor 12 signal

CONNECTOR PINOUTS REFERENCE

Scheme 8

Scheme 8: Sensor plug
Scheme 8: Sensor plug
PinDesignationPinDesignation
1Sensor supply voltage2Sensor signal
3Sensor ground

CONNECTOR PINOUTS REFERENCE

Possible cause of fault

  1. ParkAssist control unit faulty

No or incorrect basic setting/coding or programming

Note. Also refer to the 91 74 19 REMOVING AND INSTALLING CONTROL MODULE FOR PARKASSIST - AS OF MY 2003 (ALL MODELS) (Setting Parameters).

  1. ParkAssist control unit not coded/parameterised or incorrectly so

Note. After coding or entering new parameters, the ignition must be switched off and on again. Only then are the new functions active.

  1. Wiring connection between control unit and display fields (LED segments) faulty
  2. ParkAssistent display field (LED segments), front, faulty
  3. ParkAssist control unit faulty

Note. The display fields (LED segments), front left and right, are not separate components. They can be exchanged as a complete unit only.

Affected pins

Plug A for ParkAssist control unit

  1. Pin 6 'PDC display, signal'
  2. Pin 5 'PDC display voltage'
  3. Pin 4 'PDC display GND'

Plug for display field (LED segments)

  1. Pin 1 'Battery voltage'
  2. Pin 2 'ground'
  3. Pin 3 'signal'
  1. Wiring connection between control unit and display fields (LED segments) faulty
  2. ParkAssistent display field (LED segments), front, faulty
  3. ParkAssist control unit faulty

Note. The display fields (LED segments), front left and right, are not separate components. They can be exchanged as a complete unit only.

Plug A for ParkAssist control unit

  1. Pin 6 'PDC display, signal'
  2. Pin 5 'PDC display voltage'
  3. Pin 4 'PDC display GND'

Plug for display field (LED segments)

  1. Pin 1 'Battery voltage'
  2. Pin 2 'ground'
  3. Pin 3 'signal'
  1. Wiring connection between control unit and display fields (LED segments) faulty
  2. ParkAssist display field (LED segments), rear, faulty
  3. ParkAssist control unit faulty

Note. Unlike at the front, there is a combined fault code for the rear, left and right.

Note. There is a further plug connection for the rear display field (LED segments) in the area of the roof console.

Plug A for ParkAssist control unit

  1. Pin 6 'PDC display, signal'
  2. Pin 5 'PDC display voltage'
  3. Pin 4 'PDC display GND'

Plug for display field (LED segments)

  1. Pin 1 'Battery voltage'
  2. Pin 2 'ground'
  3. Pin 3 'signal'
  1. Supply voltage for display fields (LED segments) and buzzer outside allowable limits (8.0 - 16.5 V)
  2. Wiring connection between control unit and display fields (LED segments) and buzzer faulty
  3. ParkAssist display field/buzzer faulty
  4. ParkAssist control unit faulty

Note. If the buzzer is too quiet, this may also be caused by deposits of dirt and metal filings on the magnets of the buzzer.

Plug A for ParkAssist control unit

  1. Pin 5 'PDC display voltage'
  2. Pin 4 'PDC display GND'
  3. Pin 9 'PDC tone generator +'

Plug for display field (LED segments)

  1. Pin 1 'Battery/supply voltage'
  2. Pin 2 'Ground/GND'

Plug for buzzer (loudspeaker/tone generator)

  1. Pin 1 '1'
  2. Pin 2 '2'

Note. In the wiring connection to the rear display field, there is an additional disconnection point in the area of the roof console.

Fault code 0433

Note. If the duration of the signal from the switch is too long (e.g. if pressed too long) > 60 seconds, the system automatically activates.

  1. ParkAssist switch (button) pressed too long (> 60 seconds)
  2. Switch sticks or is faulty
  3. Wiring connection between control unit and switch faulty
  4. ParkAssist control unit

Plug A for ParkAssist control unit

  1. Pin 12 'PDC switch, GND'
  2. Pin 13 'PDC function LED'
  3. Pin 14 'PDC switch, signal'

Plug for roof console/switch (roof module) wiring harness

  1. Pin 1 (LED) 'PDC function'
  2. Pin 2 (switch signal) 'PDC switch'
  3. Pin 3 (ground) 'PDC GND'

Note. Fault entry due to environmental conditions: this fault can also occur if the sensors are heavily soiled, iced-up or have been painted. In addition, intense sound sources such as pneumatic hammers can cause defects.

  1. Adverse environmental conditions
  2. Short or open circuit in wires between control unit and sensor
  3. Sensor faulty
  4. ParkAssist control unit faulty

Plug for sensor wiring harness

  1. Pin 1 'PDC sensor, battery voltage'
  2. Pin 2 'PDC sensor, signal'
  3. Pin 3 'PDC sensor, GND'

Plug B for control unit wiring harness

  1. Pin 1 'PDC sensor, front -'
  2. Pin 2 'PDC sensor, front +'
  3. Pin 5 'PDC sensor, inner FL'

Note. Fault entry due to environmental conditions: this fault can also occur if the sensors are heavily soiled, iced-up or have been painted. In addition, intense sound sources such as pneumatic hammers can cause defects.

  1. Adverse environmental conditions
  2. Short or open circuit in wires between control unit and sensor
  3. Sensor faulty
  4. ParkAssist control unit faulty

Plug for sensor wiring harness

  1. Pin 1 'PDC sensor, battery voltage'
  2. Pin 2 'PDC sensor, signal'
  3. Pin 3 'PDC sensor, GND'

Plug B for control unit wiring harness

  1. Pin 1 'PDC sensor, front -'
  2. Pin 2 'PDC sensor, front +'
  3. Pin 6 'PDC sensor, inner FR'

Note. Fault entry due to environmental conditions: this fault can also occur if the sensors are heavily soiled, iced-up or have been painted. In addition, intense sound sources such as pneumatic hammers can cause defects.

  1. Adverse environmental conditions
  2. Short or open circuit in wires between control unit and sensor
  3. Sensor faulty
  4. ParkAssist control unit faulty

Plug for sensor wiring harness

  1. Pin 1 'PDC sensor, battery voltage'
  2. Pin 2 'PDC sensor, signal'
  3. Pin 3 'PDC sensor, GND'

Plug B for control unit wiring harness

  1. Pin 9 'PDC sensor, rear -'
  2. Pin 10 'PDC sensor, rear +'
  3. Pin 14 'PDC sensor, inner RL'

Note. Fault entry due to environmental conditions: this fault can also occur if the sensors are heavily soiled, iced-up or have been painted. In addition, intense sound sources such as pneumatic hammers can cause defects.

  1. Adverse environmental conditions
  2. Short or open circuit in wires between control unit and sensor
  3. Sensor faulty
  4. ParkAssist control unit faulty

Plug for sensor wiring harness

  1. Pin 1 'PDC sensor, battery voltage'
  2. Pin 2 'PDC sensor, signal'
  3. Pin 3 'PDC sensor, GND'

Plug B for control unit wiring harness

  1. Pin 9 'PDC sensor, rear -'
  2. Pin 10 'PDC sensor, rear +'
  3. Pin 13 'PDC sensor, center RR'
  1. No signal/communication (no signal from KESSY control unit on CAN comfort)
  2. Fault entered in KESSY control unit

Plug A for control unit

  1. Pin 3 'CAN comfort (low)'
  2. Pin 4 'CAN comfort (high)'
  1. No signal/communication (no signal from vehicle electrical system control unit on CAN comfort)
  2. Read out fault memory (from vehicle electrical system control unit)

Plug A for ParkAssist control unit

  1. Pin 3 'CAN comfort (low)'
  2. Pin 2 'CAN comfort (high)'

Note. With this fault, the display fields (LED segments) might be at full brillance.

  1. Instrument cluster/gateway coded incorrectly

Note. This fault can occur if the instrument cluster/gateway does not detect the ParkAssist control unit

  1. Communication problem with the gateway

Wiring harness plug for ParkAssist control unit

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

Plug A for ParkAssist control unit

  1. Pin 3 'CAN drive (low)'
  2. Pin 2 'CAN drive (high)'
  1. Short circuit between CAN lead (high) and CAN lead (low)
  2. Short circuit to B+
  3. Short circuit to ground
  4. Fault in a control unit connected to CAN comfort

Plug A for ParkAssist control unit

  1. Pin 3 'CAN comfort (low)'
  2. Pin 2 'CAN comfort (high)'
  1. No signal/communication (no signal from instrument cluster on CAN comfort)

Plug A for ParkAssist control unit

  1. Pin 3 'CAN comfort (low)'
  2. Pin 2 'CAN comfort (high)'

Trailer hitch control unit

Note. With this fault, the rear ParkAssist sensor system is activated even with a trailer.

  1. No signal/communication (no signal from trailer hitch control unit on CAN comfort)

Plug A for ParkAssist control unit

  1. Pin 3 'CAN comfort (low)'
  2. Pin 2 'CAN comfort (high)'

ParkAssist buzzer

Note. The buzzer is also referred to as a loudspeaker or tone generator

  1. Wiring connection between control unit and buzzer faulty
  2. Buzzer faulty
  3. ParkAssist control unit faulty

Plug A for ParkAssist control unit

  1. Pin 9 'PDC tone generator +'
  2. Pin 10 'PDC tone generator, signal'

Buzzer plug

  1. Pin 1 '1'
  2. Pin 2 '2'

Note. Fault entry due to environmental conditions: this fault can also occur if the sensors are heavily soiled, iced-up or have been painted. In addition, intense sound sources such as pneumatic hammers can cause defects.

  1. Adverse environmental conditions
  2. Short or open circuit in wires between control unit and sensor
  3. Sensor faulty
  4. ParkAssist control unit faulty

Plug for sensor wiring harness

  1. Pin 1 'PDC sensor, battery voltage'
  2. Pin 2 'PDC sensor, signal'
  3. Pin 3 'PDC sensor, GND'

Plug B for control unit wiring harness

  1. Pin 9 'PDC sensor, rear -'
  2. Pin 10 'PDC sensor, rear +'
  3. Pin 16 'PDC sensor, outer RL'

Note. Fault entry due to environmental conditions: this fault can also occur if the sensors are heavily soiled, iced-up or have been painted. In addition, intense sound sources such as pneumatic hammers can cause defects.

  1. Adverse environmental conditions
  2. Short or open circuit in wires between control unit and sensor
  3. Sensor faulty
  4. ParkAssist control unit faulty

Plug for sensor wiring harness

  1. Pin 1 'PDC sensor, battery voltage'
  2. Pin 2 'PDC sensor, signal'
  3. Pin 3 'PDC sensor, GND'

Plug B for control unit wiring harness

  1. Pin 9 'PDC sensor, rear -'
  2. Pin 10 'PDC sensor, rear +'
  3. Pin 15 'PDC sensor, Centre RL'

Note. Fault entry due to environmental conditions: this fault can also occur if the sensors are heavily soiled, iced-up or have been painted. In addition, intense sound sources such as pneumatic hammers can cause defects.

  1. Adverse environmental conditions
  2. Short or open circuit in wires between control unit and sensor
  3. Sensor faulty
  4. ParkAssist control unit faulty

Plug for sensor wiring harness

  1. Pin 1 'PDC sensor, battery voltage'
  2. Pin 2 'PDC sensor, signal'
  3. Pin 3 'PDC sensor, GND'

Plug B for control unit wiring harness

  1. Pin 9 'PDC sensor, rear -'
  2. Pin 10 'PDC sensor, rear +'
  3. Pin 12 'PDC sensor, Centre RR'

Note. Fault entry due to environmental conditions: this fault can also occur if the sensors are heavily soiled, iced-up or have been painted. In addition, intense sound sources such as pneumatic hammers can cause defects.

  1. Adverse environmental conditions
  2. Short or open circuit in wires between control unit and sensor
  3. Sensor faulty
  4. ParkAssist control unit faulty

Plug for sensor wiring harness

  1. Pin 1 'PDC sensor, battery voltage'
  2. Pin 2 'PDC sensor, signal'
  3. Pin 3 'PDC sensor, GND'

Plug B for control unit wiring harness

  1. Pin 9 'PDC sensor, rear -'
  2. Pin 10 'PDC sensor, rear +'
  3. Pin 11 'PDC sensor, outer RR'
  1. Wiring connection between control unit and sensors faulty
  2. Sensors faulty
  3. ParkAssist control unit faulty

Plug B for ParkAssist control unit

  1. Pin 1 'PDC sensor -, front'
  2. Pin 2 'PDC display +, front'
  3. Pin 9 'PDC sensor -, rear'
  4. Pin 10 'PDC sensor +, rear'

Note. Fault entry due to environmental conditions: this fault can also occur if the sensors are heavily soiled, iced-up or have been painted. In addition, intense sound sources such as pneumatic hammers can cause defects.

  1. Adverse environmental conditions
  2. Short or open circuit in wires between control unit and sensor
  3. Sensor faulty
  4. ParkAssist control unit faulty

Plug for sensor wiring harness

  1. Pin 1 'PDC sensor, battery voltage'
  2. Pin 2 'PDC sensor, signal'
  3. Pin 3 'PDC sensor, GND'

Plug B for control unit wiring harness

  1. Pin 1 'PDC sensor, front -'
  2. Pin 2 'PDC sensor, front +'
  3. Pin 8 'PDC sensor, outer FR'

Note. Fault entry due to environmental conditions: this fault can also occur if the sensors are heavily soiled, iced-up or have been painted. In addition, intense sound sources such as pneumatic hammers can cause defects.

  1. Adverse environmental conditions
  2. Short or open circuit in wires between control unit and sensor
  3. Sensor faulty
  4. ParkAssist control unit faulty

Plug for sensor wiring harness

  1. Pin 1 'PDC sensor, battery voltage'
  2. Pin 2 'PDC sensor, signal'
  3. Pin 3 'PDC sensor, GND'

Plug B for control unit wiring harness

  1. Pin 1 'PDC sensor, front -'
  2. Pin 2 'PDC sensor, front +'
  3. Pin 7 'PDC sensor, Centre FR'

Note. Fault entry due to environmental conditions: this fault can also occur if the sensors are heavily soiled, iced-up or have been painted. In addition, intense sound sources such as pneumatic hammers can cause defects.

  1. Adverse environmental conditions
  2. Short or open circuit in wires between control unit and sensor
  3. Sensor faulty
  4. ParkAssist control unit faulty

Plug for sensor wiring harness

  1. Pin 1 'PDC sensor, battery voltage'
  2. Pin 2 'PDC sensor, signal'
  3. Pin 3 'PDC sensor, GND'

Plug B for control unit wiring harness

  1. Pin 1 'PDC sensor, front -'
  2. Pin 2 'PDC sensor, front +'
  3. Pin 4 'PDC sensor, FL Centre'

Note. Fault entry due to environmental conditions: this fault can also occur if the sensors are heavily soiled, iced-up or have been painted. In addition, intense sound sources such as pneumatic hammers can cause defects.

  1. Adverse environmental conditions
  2. Short or open circuit in wires between control unit and sensor
  3. Sensor faulty
  4. ParkAssist control unit faulty

Plug for sensor wiring harness

  1. Pin 1 'PDC sensor, battery voltage'
  2. Pin 2 'PDC sensor, signal'
  3. Pin 3 'PDC sensor, GND'

Plug B for control unit wiring harness

  1. Pin 1 'PDC sensor -, front'
  2. Pin 2 'PDC sensor +, front'
  3. Pin 3 'PDC sensor, outer FL'

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