5
4
LED Status
Indication
RPM1
On Solid
RPM1 mode selected, engine at
fast idle
RPM1
Flashing
RPM1 mode selected, engine not
at fast
idle (Chassis Ready Conditions not
satisfied*)
RPM2
On Solid
RPM2 mode selected, engine at
fast idle
RPM2
Flashing
RPM2 mode selected, engine not
at fast
idle (Chassis Ready Conditions not
satisfied*)
RPM3
On Solid
RPM3 mode selected, engine at
fast idle
RPM3
Flashing
RPM3 mode selected, engine not
at fast
idle (Chassis Ready Conditions not
satisfied*)
CHRG
On Solid
Charge Protect mode selected
CHRG
Flashing
Charge Protect mode selected,
engine
not at fast idle (Chassis Ready
Condition
not satisfied*)
Note - If all of the LED lights are flashing this indicates either a faulty
DLC Cable connection or that this ETM67A/ETM68A version
Is not compatible with the chassis.
* See Chassis Ready Conditions on page 2 for required conditions to
allow increased idle speed.
D. Installation
1. Getting Started
The recommended location for the ETM system is under the dash due
to the proximity of the wiring connections and cable length. The unit
should not be located in the engine compartment, or any location that
is not protected. You will need a crimping tool for the 0.25 inch Faston
(blade) terminals, and a wire stripping tool. Be sure to follow the
crimping tool instructions for the proper wire size and terminals.
2. Mount the ETM Module
Mount the ETM module under the dash using the two mounting holes.
Ensure that you have sufficient distance to install the 36 inch long DLC
cable. DO NOT EXTEND THE LENGTH OF THIS CABLE OR
WARRANTY WILL BE VOIDED.
D. Installation
3. Install the DLC Cable
Connect the two Faston terminals on the DLC cable to the ETM module
terminals (Green wire to CANL terminal and Yellow wire to CANH
terminal). Route the cable to the OBDII (On Board Diagnostic) Data Link
Connector and plug it in. The OBDII connector will be located on the
lower part of the dash on the driver’s side. Using a cable tie, secure the
plug to the OBDII connector so that it will not vibrate out. We
recommend that you route the cable of the plug back across the bottom
of the connector and loop the cable tie around the plug, socket and
cable, thereby keeping the cable out of the way. Also ensure that the
entire cable is routed and secured to keep it out of the way.
4. Wire the Parking Brake Switch Input
Note - Follow this procedure ONLY for the following chassis
configurations:
1. 2006, 2007 Silverado/Sierra Classic C2500, C3500 with 6.6 L
Diesel
2. 2006 - 2008
Kodiac/Topkick C4500,C5500 with 6.6 L Diesel
3. 2007
Express, Savanna with 6.6 L Diesel
The ETM67A/68A systems requires an input to detect that the parking
brake is set before it can go to fast idle (only on the indicated models).
Install a wire from the PK BRK terminal on the ETM module to the
chassis parking brake switch. Connect this wire on the side of the switch
that is not grounded. Verify that the wiring is correct by measuring the
voltage at the PK BRK terminal when the parking brake is operated. The
terminal should be at ground when the brake is depressed and at +
voltage when not depressed.
5. PTO Enable Wiring - Diesel Engines Only
On 2007 and earlier chassis it is necessary to activate the PTOEnable
input function on the Engine Control Module (ECM) when going to high
idle. There are different methods of activating this function depending on
the chassis configuration. See InPower Technical Bulletin TB-49 for
details.
C. Operation (Continued)
OM-64G ETM67A & ETM068A
OM-64G ETM67A & ETM068A