PSM, Porsche System Tester 2

Porsche System Tester 2
The information and warning lights illuminate during the PSM diagnosis. If a vehicle speed of 20 km/h is exceeded, the PSM control module interrupts communication with the PST2. The menu items listed in the following can vary depending on the software version.

Identification

NOTE: There are different types of the PSM control modules for the vehicle type Carrera. These control modules are identical with respect to hardware. Only their diagnosis software numbers and Porsche part numbers are different. As incorrect allocation of the control modules can lead to malfunctions, the correct control module must be installed in each case.

Control module identification data can be read out with this menu item.

The following data are displayed:
- Diagnosis software number
- Porsche part number

Extended identification
- 1. Block: Control module identification
- 2. Block: Software version

Fault memory
A maximum of three faults are stored in the fault memory. If a new fault is recognised, the oldest fault is erased from the fault memory. The fault memory is fitted with a fault erasing counter. If a fault is stored as "Not present", it is erased from the fault memory after 50 ignition resets.

Erase fault memory
This menu item is used to erase the fault memory after it has been read out.

Actual values
The following actual values can be read out with the PST2:
- Speed, front left
- Speed, front right
- Speed, rear left
- Speed, rear right
- Steering-angle sensor
- Rate-of-turn sensor
- Pressure sensor
- Transverse acceleration sensor
- Brake light voltage
- Supply voltage
- Engine speed
- Throttle (pedal position)
- Driver setpoint torque
- Selected gear (Tiptronic)
- Selector lever position (Tiptronic)
- Safety code (the safety code is required for calibration of the steering angle sensor)

Input signals
The following input signals can be checked with the PST2:
- Parking brake
- Brake fluid level switch
- Brake light
- Brake pedal
- PSM OFF
- PSM ON
- Terminal L (61)

Drive links
The following drive links can be triggered by the PST2. Their function can be checked at the same time.
- Pressure release of front axle
- Pressure release of rear axle
- Return pump
- Switch-over valve 1
- Switch-over valve 2
- Booster pump
- Booster valve 1
- Booster valve 2
- ABS warning light
- PSM warning light
- EBV/ABS warning light
- Information light
- Indicator light of PSM button

Coding

Extract coding
The following items are displayed under this menu item:

NOTE: The workshop number from the diagnosis card is stored.

Steer. angle sensor calib. by: xxxxxxx
Version coded by: xxxxxxx

Veh. Ident. No. xxxxxxxxxxxxxxx
Transmission: Manual transmission/Tiptronic

Modify coding
Follow the instructions of the diagnostic tester.

The Tester displays the current coding as follows:

Veh. Ident. No. xxxxxxxxxxxxxxx
Transmission: Manual transmission/Tiptronic

Work Instruction 1 - 2:

Static test
This test involves carrying out the valve and pump motor test. The test is normally not started until the vehicle moves off. The valve and pump motor test includes actuating all ABS valves and the pump motor and checking their feedback. It only makes sense to carry out the "Static test" function if no fault has previously been detected as present, i.e. the system has not switched off.

NOTE: This test must be carried out after the hydraulic unit has been exchanged.

Swap test
The swap test is used to check the allocation of the brake pressure lines to the wheel brake cylinders. A hydraulic and an electrical test are carried out.

NOTE: This test must be carried out after the hydraulic unit has been exchanged.

Bleeding
The brake system can be bled using this menu item.
Refer to Bleeding brakes

Steering-angle sensor calibration
The steering-angle sensor can be calibrated with this menu item. The steering-angle sensor must be calibrated after work has been carried out on the running gear in the area of the front axle. The security code is required for calibration of the steering-angle sensor. The security code is contained under menu item "Actual values". Refer to Steering-angle sensor calibration