Page 161
Connectors and pin assignment TIM
X1
ZnCu36
SeCu
SeCu
SeCu
n.a.
n.a.
n.a.
n.a.
0,75
n.a.
n.a.
ZnCu36
n.a.
n.a.
Left Primary Tail Lamp
0,75
n.a.
n.a.
ZnCu36
n.a.
n.a.
5992
Trailer Connected Signal
0,75
n.a.
n.a.
ZnCu36
n.a.
n.a.
A39
Run/Crank Ignition 1 Voltage
Stop Lamp Relay Coil Supply
Voltage
0,75
n.a.
n.a.
ZnCu36
n.a.
n.a.
0,75
n.a.
n.a.
ZnCu36
n.a.
n.a.
5184
5189
5190
5188
5065
Low Speed GMLAN Serial Data
Right Trailer Turn Signal Lamp
Right Primary Tail Lamp
Left Trailer Park Lamp
TailGate Position Switch (not used)
Right Secondary Tail/Stop Lamp
Trailer Backup Lamp
Trailer Fog Lamp
Left Secondary Tail/Stop Lamp
mm²
0,75
0,75
2,5
2,5
0,75
0,75
0,75
0,75
0,75
Trailer Brake Lamp
160
Terminal Plating
n.a.
n.a.
n.a.
n.a.
Circuit Description
Shield Group
Pigtail Wire Color
Twist Group & Rate
n.a.
n.a.
n.a.
n.a.
5060
5187
Minimum Wire
Gauge
Max. Wire
Resistance
Pigtail Wire Gauge
X1-1
X1-2
X1-3
X1-4
X1-5
X1-6
X1-7
X1-8
X1-9
X110
X111
X112
X113
X114
mm²
n.a.
n.a.
n.a.
n.a.
Circuit #
Cavity
X2
Ω
Page 162
X115
X116
X117
X118
X2-1
X2-3
Right Secondary Turn Signal Lamp
0,75
n.a.
n.a.
ZnCu36
n.a.
n.a.
5185
Right Trailer Park Lamp
0,75
n.a.
n.a.
ZnCu36
n.a.
n.a.
5186
Left Trailer Turn Signal Lamp
0,75
n.a.
n.a.
ZnCu36
n.a.
n.a.
0,5
0,75
0,75
n.a.
n.a.
ZnCu36
n.a.
n.a.
A50
A40
Left Secondary Turn Signal Lamp
GND
Batt
161
Page 163
UPA (Universal Park Assist) and APA (Advanced Parking Aid)
The universal park assist acoustically indicates the distance to obstacles behind and in the
front of the car. APA is able to lead the driver into a parking slot by giving instructions.
This chapter concentrates on both modules. Differences between both modules are outlined.
Block diagram UPA
Functional description UPA
The UPA consists of 4 sensors in the front and 4 sensors in the rear of the car. They
constantly generate a signal representing the distance to obstacles nearby the car. The UPA
module calculates the distance based on the sensors’ signal.
Depending on the distance, a beep sound will be generated. This sound is send out through
the vehicles radio system. The nearer an obstacle is, the faster the module sounds.
162
Page 164
Block diagram APA
Functional description APA
APA is an enhancement of UPA. It consists of 4 sensors in the front, 4 sensors in the rear of
the car and two additional APA sensors at the side. These additional APA sensors are used
to measure the parking slot size.
1.
The vehicle passes a row of cars. APA is activated by
pushing a button.
2.
APA searches for an appropriate parking slot. If a
slot is detected, feedback is given to the driver.
3.
STOP
The driver accepts the decision of APA by stopping
the vehicle. The system calculates the optimal path
into the parking slot. After that it leads the driver
into the slot by giving instructions.
163
Page 165
Connectors and pin assignment UPA and APA
X1
X2
X3
X1-1
X1-2
2370
X1-2
1159
Battery Feed
n.c. (Rear Parking Display Supply
Voltage)
External Speaker Signal (+)
164
mm²
Ω
0,2
0,2
0,4
mm²
Pigtail Wire Color
Pigtail Wire Gauge
Terminal Plating
Shield Group
Circuit Description
Twist Group & Rate
Minimum Wire
Gauge
Max. Wire
Resistance
Circuit #
Cavity
Note: Pins marked by * are only available on APA.
Page 166
5852
X1-4
X1-5
X1-6
X1-7
X1-8
2371
1160
X1-9
X1-10
2372
2373
X1-11
X1-12
X2-1
X2-2
X2-3
X2-4
X2-5
X2-6*
X2-7*
X2-8
2555
2378
2377
2376
2374
2375
2379
X3-1
X3-2
6581
X3-2
980
X3-3*
983
X3-4
X3-5
X3-6
X3-7
X3-8
X3-9
X3-10
X3-11
X3-12*
5215
5216
7039
7041
5214
5218
5217
984
Rear Park Assist LED Disable Signal (UPA
Disable LED)
n.c. (Left Amber Indicator Control)
External Speaker Signal (-)
CAN (GMLAN)
Ground Feed
Rear Park Assist Disable Signal (UPA
Disable Switch)
n.c. (Center Amber Indicator Control)
n.c. (Rear Parking Assist Red Indicator
Control)
n.c.
CAN (GMLAN)
Right Rear Corner Object Sensor Signal
Right Rear Middle Object Sensor Signal
Left Rear Middle Object Sensor Signal
Rear Object Sensor Supply Voltage
Left Rear Corner Object Sensor Signal
APA Disable Switch
n.c. (APA Disable LED)
Rear Parking Object Sensor Low
Reference
Front Object Sensor Supply Voltage
Front Parking Aid Display Supply Voltage
- Not used
n.c. (Front UPA Speaker Signal (+), Front
Parking Aid Display Supply Voltage)
Left Front Supplemental Object Sensor
Signal
Front Parking Left Corner Sensor
Front Parking Left Mid Sensor
n.c. (Front Parking Aid Yellow LED 1)
n.c. (Front Parking Aid Yellow LED 2)
Front Parking Sensor Low Reference
n.c.
Front Parking Right Mid Sensor
Front Parking Right Corner Sensor
Right Front Supplemental Object Sensor
Signal
165
mm²
0,2
Ω
0,4
0,2
0,4
0,2
0,2
0,4
0,33
0,33
0,33
0,33
0,33
0,2
0,2
0,33
0,4
0,4
0,4
0,4
0,4
0,4
0,4
0,4
0,33
0,4
0,33
0,4
0,33
0,33
0,4
0,4
0,33
0,4
0,33
0,33
0,33
0,4
0,4
0,4
mm²
Pigtail Wire Color
Pigtail Wire Gauge
Terminal Plating
Shield Group
Twist Group & Rate
Minimum Wire
Gauge
Max. Wire
Resistance
Circuit #
Cavity
X1-3
Circuit Description
Page 167
X3-13
X3-14
7042
979
Circuit #
Cavity
mm²
n.c. (Front Parking Aid Red LED)
n.c. (Front UPA Speaker Signal (-))
166
Ω
mm²
Pigtail Wire Color
Pigtail Wire Gauge
Terminal Plating
Shield Group
Twist Group & Rate
Minimum Wire
Gauge
Max. Wire
Resistance
Circuit Description
Page 168
ESCL (Electrical Steering Column Lock)
Block diagram ESCL
2
8
Inverted Ignition
LS CAN
Lock Status Signal (Feedback)
BCM
3
Battery Positive Voltage
5
Ground (Dirty Ground)
Signal Ground
6
ESCL
7
4
Key Out Signal or
PEPS Lock
PEPS
Functional description ESCL
The ESCL locks the steering column when the car is in the following condition:
• Power mode is off
• Wheel ground velocity is 0 from 3 of 4 wheels
• Driver or passenger door is open
The ESCL will unlock when power mode is non off.
The ESCL report its status on a hardwired signal to the BCM and also with a CAN message.
Without the PEPS lock signal the ESCL cannot drive the motor in the lock direction, the signal
will be active when the door open switch is true and valid, the door switch is at least
mounted in the driver door.
167
Page 169
Cavity
Circuit #
Pin assignment ESCL
3
807
105
or
1601
5904
A50
A51
A40
4
2
6
7
5
Circuit Description
OFF /Accessory Voltage (Ignition Inverted)
Ignition Switch Key Out Signal or
Steering Column Lock Signal (PEPS Lock)
Steering Column Lock Status Signal (Feedback)
Ground (Dirty Ground)
Signal Ground
Battery Positive Voltage (Battery Clean)
168
Page 170
RSA (Rear Seat Audio Module)
Vehicles with this feature allow the rear seat passengers to listen to and control any of the
music sources: radio, CDs, DVDs, or other auxiliary sources.
RSA can only control music sources that the front seat passengers are listening to, except on
radios where dual control is allowed. RSA can function when the front radio is off. X displays
on the infotainment system when RSA is on.
Block diagram
Two different levels for RSA module.
Level 2
13290375 &CJ2&ULD
-
LSGMLAN Interface
Power Button
Seek Up/Down Button
Source Button
Program Button
Display
2 Headphone Jacks
2 Volume Controls
Level 4
13290374 &CJ4&ULD
169