12.07.2006, 01:23
Hallo Molle
Hab ich mal aus dem Holden Gen3 Manual entnommen ist aber analog anzuwenden
BCM Link to PCM/PIM
If one or more of PCM, PIM or BCM have been replaced, the modules must be security linked to each other. If the procedure is not performed, the vehicle will not crank or run.This linking procedure has to be performed as follows:
• Connect TECH 2 to DLC and select the following:
• Diagnostics / (X) 1999 / WH Statesman or Caprice / BODY / BODY CONTROL MODULE / SECURITY /BCM LINK TO PCM/PIM / select applicable engine and follow TECH 2 instructions.
NOTE: On vehicles with a GEN III V8 engine it will be necessary to obtain TIS approval during the linkingprocedure. When instructed to obtain TIS approval by TECH 2, use the following procedure:
• Disconnect TECH 2 from the vehicle.
• Using the RS232 connector lead, Hardware Key and TECH 2 power lead, connect TECH 2 to a PersonalComputer (PC) with TIS 2000 installed.
• Turn TECH 2 on so that the TECH 2 screen displays "TECH 2".
• Open TIS 2000 and select Enable Programming, then follow the screen instructions.
• When TIS 2000 displays the Programming Enabled screen close TIS 2000.
• Disconnect TECH 2 from the PC and reconnect TECH 2 to the vehicles DLC.
• On TECH 2, select Diagnostics / (X) 1999 / WH Statesman or Caprice / BODY / BODY CONTROLMODULE / SECURITY / BCM LINK TO PCM/PIM / select applicable engine and follow TECH 2 instructions again.
• For additional information regarding TECH 2 and this linking procedure, refer to TECH 2 DIAGNOSIS FOR BCM in Section 12J-1 LOW SERIES BCM in Volume 14C or Section 12J-2 HIGH SERIES BCM in Volume14D of the VT Series Service Manual.GEN III V8 ENGINE MANAGEMENT
Gruß Marco (der gerade an Tinas Rechner sitzt)
ELECTRONIC TRACTION CONTROL
When the ABS/ETC control module senses spin from the drive wheels due to too much engine torque for theroad conditions, it enters the traction control mode.
The ABS/ETC module monitors both front and rear wheel speeds through the wheel speed sensors. If at anytime during acceleration the ABS/ETC module detects drive wheel slip, it will request:
• The PCM, via the spark retard circuit, to retard the amount of spark advance.
• The PCM, to restrict transmission downshifting.
• The throttle relaxer control module to reduce the engine throttle opening by a certain percentage to bringengine torque into a specific range.
The throttle relaxer control module accomplishes this by commanding the throttle relaxer to override theaccelerator pedal cable and physically reduce the throttle body butterfly opening by winding the throttlecable back.This is achieved via two high speed Pulse Width Modulated (PWM) circuits between the ABS/ETC moduleand the throttle relaxer control module. The ABS/ETC control module sends a message to the throttlerelaxer control module on the requested throttle position (DKR) circuit.
The throttle relaxer control modulethen reports the modified throttle position opening back to the ABS/ETC control module via the actualthrottle position (DKI) circuit.
Simultaneously with engine spark retard and throttle position intervention, the ABS/ETC control module willactivate the ABS isolation valves, turn on the ABS pump motor and supply brake pressure to the over spinningwheel(s).
The isolation valves isolate the front brake hydraulic circuits from the master cylinder and rear brake hydrauliccircuits. Once the rear brake hydraulic circuits are isolated, pressure can be applied to the rear wheels withoutaffecting any other brake hydraulic circuits. The ABS/ETC module opens the priming valve, allowing fluid to bedrawn from the master cylinder to the pump motor, turns on the ABS pump motor to apply pressure, beginscycling the ABS assembly's inlet and outlet valves, and closes the switching valve, ensuring fluid is directed tothe wheel not back into the master cylinder.The inlet and outlet valve cycling aids in obtaining maximum road surface traction in the same manner as theAnti-Lock Brake mode.
The difference between Traction Control and Anti-Lock Brake mode is that brake fluidpressure is increased to lessen wheel spin (Traction Control mode), rather than reduced to allow greater wheelspin (Anti-Lock Brake mode).If at any time during Traction Control mode, the brakes are manually applied, the brake switch signals theABS/ETC module to inhibit brake intervention and allow for manual braking (throttle reduction and spark retardintervention can still occur if necessary).
Engine Spark and Throttle Position InterventionSimultaneously to brake intervention, the ABS/ETC control module communicates with the Powertrain ControlModule (PCM) and the throttle relaxer control module requesting the PCM to retard the spark advance and forthe throttle relaxer control module to reduce the throttle opening.
With the engine running, the PCM continually supplies and monitors a 12 volt pull-up to the spark retard circuit.
The ABS/ETC control module requests spark retard by pulling this voltage low. The PCM then responds byreducing the spark advance of the engine and restricting transmission downshifting.
The ABS/ETC control module constantly sends a Pulse Width Modulated (PWM) signal at 90% with a frequencyof "lOOHz to the throttle relaxer control module on the requested throttle position line (DKR). This signal is toindicate to the throttle relaxer control module that the traction control system (ETC) is in a state of readiness.
With the engine idling, the ABS/ETC control module constantly sends a Pulse Width Modulated (PMW) signalwith a duty cycle of 90% to the throttle relaxer control module via the requested throttle position line (DKR). Thethrottle relaxer control module responds on the actual throttle position line (DKI) with a PWM signal with a dutycycle of 9%.
When the ABS/ETC control module determines that a reduction in throttle is required, it reduces the PWM signalon the requested throttle position line (DKR), from 90% (no throttle reduction) to as low as approximately 14%(maximum throttle reduction). The throttle relaxer control module then drives the throttle relaxer motor,overriding the accelerator pedal command (drivers foot), pulling the throttle cable back, and thus, closing theamount of throttle opening.
Hab ich mal aus dem Holden Gen3 Manual entnommen ist aber analog anzuwenden
BCM Link to PCM/PIM
If one or more of PCM, PIM or BCM have been replaced, the modules must be security linked to each other. If the procedure is not performed, the vehicle will not crank or run.This linking procedure has to be performed as follows:
• Connect TECH 2 to DLC and select the following:
• Diagnostics / (X) 1999 / WH Statesman or Caprice / BODY / BODY CONTROL MODULE / SECURITY /BCM LINK TO PCM/PIM / select applicable engine and follow TECH 2 instructions.
NOTE: On vehicles with a GEN III V8 engine it will be necessary to obtain TIS approval during the linkingprocedure. When instructed to obtain TIS approval by TECH 2, use the following procedure:
• Disconnect TECH 2 from the vehicle.
• Using the RS232 connector lead, Hardware Key and TECH 2 power lead, connect TECH 2 to a PersonalComputer (PC) with TIS 2000 installed.
• Turn TECH 2 on so that the TECH 2 screen displays "TECH 2".
• Open TIS 2000 and select Enable Programming, then follow the screen instructions.
• When TIS 2000 displays the Programming Enabled screen close TIS 2000.
• Disconnect TECH 2 from the PC and reconnect TECH 2 to the vehicles DLC.
• On TECH 2, select Diagnostics / (X) 1999 / WH Statesman or Caprice / BODY / BODY CONTROLMODULE / SECURITY / BCM LINK TO PCM/PIM / select applicable engine and follow TECH 2 instructions again.
• For additional information regarding TECH 2 and this linking procedure, refer to TECH 2 DIAGNOSIS FOR BCM in Section 12J-1 LOW SERIES BCM in Volume 14C or Section 12J-2 HIGH SERIES BCM in Volume14D of the VT Series Service Manual.GEN III V8 ENGINE MANAGEMENT
Gruß Marco (der gerade an Tinas Rechner sitzt)
ELECTRONIC TRACTION CONTROL
When the ABS/ETC control module senses spin from the drive wheels due to too much engine torque for theroad conditions, it enters the traction control mode.
The ABS/ETC module monitors both front and rear wheel speeds through the wheel speed sensors. If at anytime during acceleration the ABS/ETC module detects drive wheel slip, it will request:
• The PCM, via the spark retard circuit, to retard the amount of spark advance.
• The PCM, to restrict transmission downshifting.
• The throttle relaxer control module to reduce the engine throttle opening by a certain percentage to bringengine torque into a specific range.
The throttle relaxer control module accomplishes this by commanding the throttle relaxer to override theaccelerator pedal cable and physically reduce the throttle body butterfly opening by winding the throttlecable back.This is achieved via two high speed Pulse Width Modulated (PWM) circuits between the ABS/ETC moduleand the throttle relaxer control module. The ABS/ETC control module sends a message to the throttlerelaxer control module on the requested throttle position (DKR) circuit.
The throttle relaxer control modulethen reports the modified throttle position opening back to the ABS/ETC control module via the actualthrottle position (DKI) circuit.
Simultaneously with engine spark retard and throttle position intervention, the ABS/ETC control module willactivate the ABS isolation valves, turn on the ABS pump motor and supply brake pressure to the over spinningwheel(s).
The isolation valves isolate the front brake hydraulic circuits from the master cylinder and rear brake hydrauliccircuits. Once the rear brake hydraulic circuits are isolated, pressure can be applied to the rear wheels withoutaffecting any other brake hydraulic circuits. The ABS/ETC module opens the priming valve, allowing fluid to bedrawn from the master cylinder to the pump motor, turns on the ABS pump motor to apply pressure, beginscycling the ABS assembly's inlet and outlet valves, and closes the switching valve, ensuring fluid is directed tothe wheel not back into the master cylinder.The inlet and outlet valve cycling aids in obtaining maximum road surface traction in the same manner as theAnti-Lock Brake mode.
The difference between Traction Control and Anti-Lock Brake mode is that brake fluidpressure is increased to lessen wheel spin (Traction Control mode), rather than reduced to allow greater wheelspin (Anti-Lock Brake mode).If at any time during Traction Control mode, the brakes are manually applied, the brake switch signals theABS/ETC module to inhibit brake intervention and allow for manual braking (throttle reduction and spark retardintervention can still occur if necessary).
Engine Spark and Throttle Position InterventionSimultaneously to brake intervention, the ABS/ETC control module communicates with the Powertrain ControlModule (PCM) and the throttle relaxer control module requesting the PCM to retard the spark advance and forthe throttle relaxer control module to reduce the throttle opening.
With the engine running, the PCM continually supplies and monitors a 12 volt pull-up to the spark retard circuit.
The ABS/ETC control module requests spark retard by pulling this voltage low. The PCM then responds byreducing the spark advance of the engine and restricting transmission downshifting.
The ABS/ETC control module constantly sends a Pulse Width Modulated (PWM) signal at 90% with a frequencyof "lOOHz to the throttle relaxer control module on the requested throttle position line (DKR). This signal is toindicate to the throttle relaxer control module that the traction control system (ETC) is in a state of readiness.
With the engine idling, the ABS/ETC control module constantly sends a Pulse Width Modulated (PMW) signalwith a duty cycle of 90% to the throttle relaxer control module via the requested throttle position line (DKR). Thethrottle relaxer control module responds on the actual throttle position line (DKI) with a PWM signal with a dutycycle of 9%.
When the ABS/ETC control module determines that a reduction in throttle is required, it reduces the PWM signalon the requested throttle position line (DKR), from 90% (no throttle reduction) to as low as approximately 14%(maximum throttle reduction). The throttle relaxer control module then drives the throttle relaxer motor,overriding the accelerator pedal command (drivers foot), pulling the throttle cable back, and thus, closing theamount of throttle opening.