PRXB For HINO Trucks

PRXB For HINO Trucks
MANUAL
ELECTRICAL ONLY
Installation
PRXB For HINO Trucks
EXHAUST BRAKE
PRXB Application:
Hino Trucks with J05D-TA Engine and Aisin
Automatic Transmission
PRXB for HINO J05D-TA ENGINE with AISIN Transmission
Hino Trucks With Aisin Transmission Addendum
Hino trucks equipped with Aisin Automatic transmissions require an additional electronic control module installed to
deactivate the exhaust brake when the torque converter is not in lock up. When installed correctly the control
module will turn off the exhaust brake at 30 MPH, 50 KM/HR.
NOTE: This manual covers the electrical installation procedure. For the exhaust brake and air compressor installation
procedure follow the additional manual supplied with the exhaust brake kit.
Electrical Installation
Note: Disconnect the batteries before removing
the conectors from the ECU.
Locate the wiring schematic on Page 6
and the ECU rack drawing (RIGHT):
ABS ECU
ENGINE ECU (U2)
1
Remove the fuse panel cover on the passengers side of the dash.
2
Above the fuse panel, locate the three threaded holes in the fuse
panel support bracket.
3
Using the 3 capscrews provided, secure the control unit mounting bracket to the fuse panel support bracket. Locate the BLACK
ground wire of the Pacbrake main electrical harness, install
the BLACK wire with eye terminal under the head of one of the
capscrews.
Passenger side fuse panel
I N S TA L L AT I O N M A N U A L - L5659
PG. PRXB for HINO J05D-TA ENGINE with AISIN Transmission
4
Using the 2 capscrews provided secure the control unit to the
mounting bracket as shown. Install the two electrical harness
connectors into the control box.
5
Feed the 2 RED 14 gage wires into the engine compartment
through the firewall grommet in the upper passengers side of the
firewall. Using the loom and tie-straps provided secure the wiring
harness and apply electrical tape to the grommet to provide a
seal.
6
Mount the relay receptacles to one of the ECU mounting bracket
capscrews. A replacement capscrew is provided. All vehicles
require two relays, one for throttle control and the other is for
ABS (Anti-lock Brake System).
7
At the engine ECU, locate the connector shown in the electrical
schematic. Remove the connector from the ECU. The connector
locking device needs to be released before the Pacbrake terminals can be installed. Insert a small screwdriver into the square
hole that exists in each side of the connector. Push against the
tab and repeat on the opposite side. The terminal locking device
should raise by 1 to 2mm but is not removable. This will allow
the terminals to be installed. Insert the GREEN Pacbrake wire into
port B15, the BLACK wire into Port B24 and the BLUE wire into
port B2. Once all three Pacbrake wires are installed, push the
locking device down to lock the terminals in place. An audible
click should be heard to ensure the locking device is locked.
Install the connector back into the ECU.
I N S TA L L AT I O N M A N U A L - L5659
PG. PRXB for HINO J05D-TA ENGINE with AISIN Transmission
8
At the fuse panel, locate the air dryer fuse location. It should be
an ignition source and available to accept the fuse tap provided.
The fuse tap must be installed in a certain manner for the fuse to
protect the system. Using a test light, determine which terminal
in the fuse panel is the ignition power input. The fuse tap terminal opposite the wiring harness side must be installed into the
power source terminal for the fuse to be effective. If no empty
ignition power locations are available in the fuse panel, choose
an existing ignition circuit. Remove the existing fuse and install
the fuse tap. Install the original fuse in the lower position
of the fuse tap.
9
The ABS ECU has a Pacbrake disable circuit to turn the exhaust
brake off in the event of wheel lock-up and, therefore, must be
connected to the ABS ECU. Locate the ABS ECU in the ECU rack.
Remove the 15 pin connector from the ABS ECU, pull the VIOLET
lock tab out allowing the terminal on the YELLOW wire to be
installed in port 12 of the connector. Then push the VIOLET lock
tab in to secure the terminal. Install the connector back into the
ABS ECU.
Consult the electrical schematic on Page 6 for the ABS
connector numbering sequence.
10
Route the VIOLET and RED twisted pair of wires to the transmission connector. (As shown by the arrows)
11
Connect the VIOLET wire of the twisted pair to the VIOLET wire of
the transmission connector. This connection must be soldered,
and covered with the heat shrink provided.
Connect the RED wire of the twisted pair to the PINK wire of the
transmission connector. This connection must be soldered, and
covered with the heat shrink provided.
Secure the wires with the tie straps provided.
I N S TA L L AT I O N M A N U A L - L5659
PG. PRXB for HINO J05D-TA ENGINE with AISIN Transmission
Dash Switch Installation
12
Provided in the dash are spare cavities for the exhaust brake’s
dash switch. Choose a location that is convenient for the driver to
access and remove the blank plate. Route the leg of the harness
with the BROWN and GREEN wires behind the dash and feed
them to the switch opening. Connect the wires to the switch as
shown in the wiring schematic on Page 6 and insert the switch
into the dash. Provided is a decal to identify the switch. Peel the
paper off the back of the decal and apply either above or below
the switch. Secure the harness with the tie-straps provided.
13
Feed the two remaining GRAY and GREEN wires through the
firewall grommet under the floormat, near the accelerator pedal.
These will connect to the air compressor installed in the next
step. Seal the grommet to provide a water tight seal.
Secure wires with the straps provided.
14
Route the GRAY, GREEN and the 2 RED 14 gage wires of the
Pacbrake harness to the compressor assembly. The longer RED
wire goes to the batteries on the drivers side. Connect the GRAY
wire to the pressure switch, the GREEN wire to the solenoid and
the short RED to the compressor. The terminals are filled with
dielectric compound to prevent corrosion. Cover the connectors with electrical tape. Using the loom and tie-straps provided
protect and secure the harness.
15
Route the remaining 14 gage RED wire from the firewall boot to
the battery box on the drivers side. Supplied in the kit is an inline
30 amp fuse. Connect the inline fuse to the RED wire. The terminal is filled with dielectric compound to prevent corrosion. Cover
the connector with electrical tape. Connect the eye terminal to
the positive battery lead with the eye terminal placed under the
larger terminal. Torque nut to 10.6 +/- 2.2 lbs.ft. Cover the entire
RED wire with loom and secure with tie-straps provided.
Reconnect the batteries.
Refer to the main installation manual for compressor and exhaust brake installation instructions.
I N S TA L L AT I O N M A N U A L - L5659
PG. PRXB for HINO J05D-TA ENGINE with AISIN Transmission
Engine ECU Terminal No.
E29 E28
E27 E26
D35 D34 D33
E25 E24 E23 E22 E21 E20
E19 E18
D27 D26 D25 D24 D23 D22 D21 D20 D19 D18 D17
E7 E6
E5
E4
E3
E2
E8
E1
D16 D15 D14 D13 D12 D11 D10 D9
D6 D5 D4
D3
D8
D2
C32 C31
D7
C29 C28
B35 B34 B33 B32
B31 B30
B29 B28
A34 A33 A32 A31 A30
C27 C26 C25 C24 C23 C22 C21 C20 C19 C18
C30
B27 B26 B25 B24
B23 B22
B21 B20
A27 A26 A25 A24 A23 A22 A21 A20 A19 A18
C17 C16 C15 C14 C13 C12 C11 C10 C9
B19 B18 B17 B16 B15 B14 B13 B12 B11 B10 B9
C7 C6
D1
C5
C4
C3
C2
C8
B7 B6
C1
B5
B4
A3 A2
A8
A1
5
B1
B2
to
to
n
on
Nc
E
RE
t
ec
ct
K
ne
Pacbrake
On/Off Switch
AC
RED
G
BLACK
BROWN
87A
30
Throttle
Switch
Relay
85
87
86
YELLOW
GREEN
87
87A
Pacbrake Solenoid
BROWN
85
30
GREEN
ABS
Disable
Relay
86
Connector
GREEN
Pacbrake
Control Unit
BLACK
Solder Connection
VIOLET
VIOLET
EXISTING
HINO
HARNESS
Aisin Transmission
Connector
RED
Positive
Battery
Terminal
A4
on
BL
fuse tap
3
A5
A7 A6
c
UE
BL
3 amp fuse
A17 A16 A15 A14 A13 A12 A11 A10 A9
B8
B3 B2 B1
BLACK connect to B24
CONNECT
TO GOOD
CHASSIS
GROUND
A29 A28
Connector
PINK
RED
30 amp fuse
YELLOW
E17 E16 E15 E14 E13 E12 E11 E10 E9
D32 D31 D30 D29 D28
BROWN
E31 E30
Solder Connection
GRAY
RED (14 GAGE)
1
4
7
10
13
2
5
8
11
14
3
6
9
12
15
Connector
BLUE
BLUE
Pressure Switch
Pacbrake compressor
Connector
ABS CONNECTOR
(Back View Of Connector Shown)
NOTE: Aisin Transmission Connector, view shown
is looking at the harness side, ECU is mounted in
vehicle with the connector lock tab facing down
NOTE: Relays MUST be Diode Protected
I N S TA L L AT I O N M A N U A L - L5659
PG. 
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