Ch 6 page 63
ELECTRICAL SYSTEM
SHOP MANUAL
B4/7 CAN exhaust gas aftertreatment CAN HIGH EEC3
B4/8 CAN exhaust gas aftertreatment CAN LOW EEC3
B4/9 Not used
B4/10 Not used
B5/1 Control of starter motor Digital output signal Starter motor (relay) M1 A1
B5/2 Not used
B5/3 Signal from alternator Digital input signal Alternator, (P3) A2
B5/4 Not used
B5/5 Signal, fan rotational speed sensor and solenoid valve PWM input signal Not used
Rotational speed sensor and solenoid valve for the fan, (T123)
B5/6 Not used
B5/7 Grounding, fuel inlet metering valve Ground Fuel inlet metering valve, (V120)
B5/8 Control of the fuel inlet metering valve PWM output signal Fuel inlet metering valve, (V120)
B5/9 Control of alternator 1 PWM output signal Alternator, (P3) A3
B5/10 Not used
B6/1 Control of fan rotational speed sensor and solenoid valve PWM output signal Rotational speed
sensor and solenoid valve for the fan, (T123) Hydraulic pump (V119) bus
B6/2 Not used
B6/3 Control of coupling coil for AC compressor Digital output signal
Coupling coil for AC compressor (V2)
B6/4 Grounding of coupling coil for AC compressor Ground Coupling coil for AC compressor (V2)
B6/5 Voltage supply of fan rotational speed sensor and solenoid valve +12V Rotational speed sensor
and solenoid valve for the fan, (T123)
B6/6 Grounding of fan rotational speed sensor and solenoid valve Ground Rotational speed sensor
and solenoid valve for the fan, (T123) Hydraulic pump (V119) bus
B6/7 Not used
B6/8 Not used
B6/9 Grounding of fan rotational speed sensor and solenoid valve Ground Rotational speed
sensor and solenoid valve for the fan, (T123)
B6/10 Not used
B7/1 Signal, turbo speed sensor Frequency, input signal Turbo speed sensor, (T120) 1
B7/2 Voltage supply, electric motor for variable geometry turbocharger +24V Electric motor
for variable geometry turbocharger, (M30)
B7/3 Not used
B7/4 Not used
B7/5 Not used
B7/6 Signal, turbo speed sensor Frequency, input signal Turbo speed sensor, (T120) 2
B7/7 Grounding, electric motor for variable geometry turbocharger Ground Electric motor for
variable geometry turbocharger, (M30)
B7/8 Not used
B7/9 Not used
B7/10 Not used
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