Freightliner Cascadia 2010 electric systems prtpak 09AUG13 2013

When in emergency powermode , the SAM switches relay 9 on and off, which switches thepower to fuse 13 on and off!. If prong 87a is missing thecircuit will be normally open, thetrailer po

Version 2.4, 09AUG13 Cascadia Print Pack 2013

2

87a 87

30 85

86

87a 87

30 85

86

87a 87

30 85

86

87a 87

30 85

30

85

86 87a 87

30

85

86

See Note: R 8

NOTE R 9:

The SAM switches relay 9 onsupplying power to fuse 13when the headlight switch ison! thus turning on the trailertail lamps

When in emergency powermode , the SAM switches relay 9

on and off, which switches thepower to fuse 13 on and off!

thus flashing the trailer taillamps

If prong 87a is missing thecircuit will be normally open, thetrailer power circuit is enabledonly if the key is in IGN position

or enabled through a switch( depending on SAMparameterization)

If prong 87 is missing, the circuit

Normally Open( IGN orSwitch power)

86 30

87a 85 87

86 30

87a 85 87

NC Relay -Pin 87missing

NO Relay -Pin 87amissing

f545101 Ref Dia SAM CHAS_Relay_Fuse_small.vsd

02/25/2010

* When specified with Optimized Idle, these pins will not supply power when the key is in the ACC position,

nor during an Optimized Idle vehicle shutdown event Optimized Idle is specified by a SAM Cab parameter.

7A

INTERNAL SAM PC

BOARD

GND To Battery

LOGIC CONTROLLED UNFUSED OUTPUTS

f545103 Ref Dia SAM_CHAS_unfused small.vsd

02/25/2010

* When specified with Optimized Idle, these pins will not supply power when the key is in the ACC position,

nor during an Optimized Idle vehicle shutdown event Optimized Idle is specified by a SAM Cab parameter.

7B

7C

* When specified with Optimized Idle, these pins will not supply power when the key is in the ACC position,

nor during an Optimized Idle vehicle shutdown event Optimized Idle is specified by a SAM Cab parameter.

87a 87

30 85

86

87a 87 30

85 86

87a 87

30 85

86 87a 87

30 85

86

87a 87

30 85

86 87a 87

30 85

86 87a 87

30 85

86

87a 87 30

85

86

INTERNAL SAM WIRING

87a 87 30

85 86

87a 87 30

85 86

87a 87 30

85 86

87a 87 30

85 86

87a 87 30

85 86

02/25/2010

* When specified with Optimized Idle, these pins will not supply power when the key is in the ACC position,

nor during an Optimized Idle vehicle shutdown event Optimized Idle is specified by a SAM Cab parameter.

AMBIENT TEMP SENSOR

RADIO

TRANSMISSION CONTROL MODULE

HVAC

Transducer

MCM

CPC ACM

COLLISION AVOIDANCE

HEADLIGHTS

LOW AIR PRESSURE SWITCHES

Exercise 3.10 Multiplexing / Electronic System Operations

16B