On-Board-Diagnosis Measured Values MR/PLD (Engine Control)

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Ashley Simon
5 years ago
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1 MW01 Specified engine torque The specified engine torque requirement of the FR (FMR) or PSM is 1 Accelerator pedal not operated 2 Start engine and allow to idle 3 Operate accelerator pedal when the engine is running FR (FMR) specified engine torque Unit: Nm Resolution: 1 Nm P L D M W 0 1 P L D M W Display (3): P L D M W The value displayed depends on the accelerator pedal position and engine load. MW02 Max. current engine torque The max. current engine torque is 1 Accelerator pedal not operated 2 Start engine and allow to idle Max. current engine torque Unit: Nm Resolution: 1 Nm P L D M W P L D M W The max. torque of the engine installed is displayed when engine is not running. MW03 Actual engine torque The current engine torque is 2 When the engine is running (idle speed) Actual engine torque Unit: Nm Resolution: 1 Nm P L D M W 0 3 P L D M W OC 500 RF page 1

2 MW04 Delivery angle The mean value of the delivery angle (actuation time) of all unit pumps is 2 When the engine is running (idle speed) Delivery angle Unit: CKA (degrees at crankshaft) Resolution: 0,1 KW P L D M W P L D M W Display 1 is -45, display 2. is 2.4 crankshaft. MW05 Start of delivery The mean value of start of delivery (start of injection) of all unit pumps is displayed 2 When the engine is running (idle speed) 3 Operate accelerator pedal Start of delivery Unit: CKA before TDC (degrees at crankshaft) Resolution: 0,1 CKA P L D M W 0 5 P L D M W Display (3): P L D M W An angular value after TDC is displayed by a minus sign prefix. An angular value before TDC is displayed by a plus sign prefix. MW06 Current regulation speed The current regulation speed is No dynamic value is Current regulation speed P L D M W 0 6 P L D M W 0 6 OC 500 RF page 2

3 MW07 Current full-load regulation speed The current full-load regulation speed is No dynamic value is displayed Current regulation speed P L D M W P L D M W The stationary speed limitation of the FR (FMR) is MW08 Specified regulation speed value The specified regulation speed value requirement of the FR (FMR) or PSM is Current speed, terminal W P L D M W 0 8 P L D M W 0 8 MW09 Speed, terminal W The redundant terminal W speed (generator) of the FR (FMR) is 1 When vehicle is stationary 2 Compare with engine speed, terminal W at idle speed Current speed, terminal W P L D M W P L D M W 0 9 MW10 MR engine speed (PLD) The current speed of the MR (PLD) from the crankshaft angle position sensor and TDC sensor is MR engine speed (PLD) P L D M W 1 0 P L D M W 1 0 MW11 FR (FMR) engine speed gradient limitation The value is not transmitted by the FR (FMR). FR (FMR) engine speed gradient limitation per second Display (1.): P L D M W FR (FMR) sends "No signal" when the value is OC 500 RF page 3

4 MW12 FR (FMR) vehicle speed The current vehicle speed, tachograph v-signal to FR (FMR) is 1 Vehicle stationary 2 Road test FR (FMR) vehicle speed Unit/resolution: 1 km/h P L D M W 1 2 P L D M W 1 2 MW13 Engine coolant temperature The current engine coolant temperature is Engine coolant temperature P L D M W 1 3 (Compare measured values MW13, MW14 and MW16 for plausibility check of temperature sensors.) If a component is defective, a substitute value of 100 C is displayed on engine BR501 and 105 C on engine BR502 MW14 Fuel temperature The current fuel temperature is displayed Fuel temperature Display (1.): P L D M W 1 4 (Compare measured values MW13, MW14 and MW16 for plausibility check of temperature sensors) If a component is defective, a substitute value of 0 C is MW15 Oil level The current quantity by which the oil level is short of the specified level is 1 When the engine is running Unit/resolution: liters (l)/0.1 l P L D M W The quantity of 1.4 l by which the oil level is short of the specified level is P L D M W The quantity of 1.4 l by which the oil level exceeds the specified level is OC 500 RF page 4

5 MW16 Oil temperature The current oil temperature is Oil temperature P L D M W 1 6 (Compare measured values MW13, MW14 and MW16 for plausibility check of temperature sensors.) If a component is defective, a substitute value of 205 C is MW17 Charge air temperature The current charge air temperature is For all vehicle operating Oil temperature P L D M W 1 7 If a component is defective, a substitute value of 60 C is MW18 Boost pressure The current boost pressure is displayed 1 With engine not running and when the engine is running Boost pressure Unit/resolution: 1 mbar P L D M W The barometric air pressure (ambient air pressure) is displayed with engine not running. - When the throttle is opened and vehicle is stationary, the value displayed reduces temporarily and increases slightly relative to the engine not running. - The value increases on a road test and increases significantly as the engine load increases (driving uphill or laden). - If a component is defective, substitute values (speeddependent) from an MR control unit (PLD) characteristic are MW19 Barometric air pressure The current barometric air pressure is 1 With engine not running and when the engine is running Barometric air pressure Unit/resolution: 1 mbar Display (1.): P L D M W If a component is defective, a substitute value of 800 mbar is displayed OC 500 RF page 5

6 MW20 Oil pressure The current oil pressure is displayed 1 With engine not running 2 When the engine is running Oil pressure Unit/resolution: 1 mbar P L D M W P L D M W If a component is defective, a substitute value of 3500 mbar is MW21 Voltage, terminal 30 The voltage at terminal 30 is 1 With engine not running 2 When the engine is running Voltage, terminal 30 Unit/resolution: 1 mv P L D M W P L D M W Display 1 is V. Display 2 is V. MW22 Type of governor The type of governor currently activated by the FR (FMR) or PSM or KS (MKR) (on EAS vehicles only) is 1 With engine not running and when the engine is running 2 At working speed 3 Road test with EAS vehicle (KS (MKR) governor 0 only appears during electrical clutch actuation, otherwise governor 15) Type of governor Actual value range: 0 to 15 15: Idle speed controller (RQ characteristic) 1: Working speed controller (RQV characteristic) 0: Speed controller for KS (MKR) P L D M W P L D M W Display (3.): P L D M W 2 2 OC 500 RF page 6

7 MW23 Engine condition The current engine condition is displayed 1 With engine not running 2 When the engine is running (idle) 3 When the engine is running (accelerator pedal depressed) Engine condition: 0: Engine stop 1: Start discontinuation 2: Engine start 3: Idle speed control 4: Working speed control 5: Controlled operation 6: Emergency-running if there is a communication fault with FR (FMR). (The value cannot be shown on the display, as it is transmitted to the instrument via the engine CAN bus and FR (FMR).) P L D M W 2 3 Display (2.): P L D M W Display (3.): P L D M W OC 500 RF page 7

On-Board-Diagnosis Binary Values FR (Drive Control)

On-Board-Diagnosis Binary Values FR (Drive Control) BW01 Voltage supply, terminal 15 Voltage supply, FR (FMR) control unit, terminal 15 at X2. 18/3. FMR B W 0 1 00 00 00 01 BW01 Starter signal, terminal 50 Voltage supply, FR (FMR) control unit, terminal