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https://sites.google.com/site/sloppy...ans-controller 4L80E Cheap stand alone
EDIT 9/26/16 - Now I have over 400 miles on this stand alone transmission controller. I also recently turned on the torque converter clutch to activate in overdrive. Everything is working perfectly and shifts just like it should.
As the subject says. This is for those guys who are running MegaSquirt, carb or something other than a factory computer for their engines. This write-up is for OPERATION OF THE 4L80E TRANSMISSION. I (Dale Follett) can write up how to make it work on a 4L60e too if theirs enough interest into it.
History:
I (Dale Follett) was tired of having my LS engine/4L80e transmission wired up for full manual valve body and wanted it to shift itself automatically like a factory unit. This could easily be done by swapping around the entire engine computer and harness back to a factory style PCM, BUT my car is wired up with MegaSquirt 2 and I like its features. A Microsquirt and 4L80e harness is $450.00, but thats a bit much to swing just for automatic transmission control and I wanted a cheaper option. This is what I came up with, only cost 2 HP tuners Licencing credits and a PCM from the junkyard (Total of $125.00) and some of my time.
Required Parts or Tools>
HP tuners interface or someone who has a HP tuners interface.
0411 PCM that was a throttle body drive by cable setup. Does not matter if it was a 4L60E or 4L80E BUT having a computer that ran your transmission from the factory from the junkyard is easier.
All your normal wiring crap. Soldering Iron, wire strippers, electrical tape or if you want to be fancy heat shrink, wire, etc. All the Transmission electrical connectors, and the Factory PCM electrical connectors, and a OBD2 diagnostics port connector for the HP tuners interface to PCM communications.
As already stated this is for the 4L80E GM transmission WITH THE UPDATED PASS THROUGH TRANSMISSION CONNECTOR.
The only required PCM inputs from the engine is only RPM and throttle position. The rest of the PCM's inputs come from the transmission itself.
Biggest thing here is PCM selection. You need a PCM that runs a 4L80E preferably or 4L60E that also reads the crankshaft position wheel. Example, my firebird setup is running a 4.8L LS gen 3 engine that has the 24X wheel. So for the PCM or tune file, it needed to be out of a vehicle that had the LS 24X crankshaft position sensor wheel so the PCM's RPM input would read accurately. If your running a older style 350 small block chevy you would need a PCM out of a chevy express van and setup the engine for the same crankshaft position sensor and wheel to get the correct RPM input into the PCM.
The next thing is TPS. For us using EFI this is no big deal because we already have a TPS sensor. For those of you who are looking into doing this for your carburated setups, you'll need to fabricate a mount onto your carb for a TPS sensor. This PCM REQUIRES A TPS INPUT in order to function correctly as a transmission control module.
Now on how to wire it in. Their are no pre-made wiring harness' for this so you will have to make your own harness. It is not that hard though and NOTHING compared to building a engine wiring harness. I go by pinout count and connector pin counts to do my wiring harness' because the wiring colors may be different from make and model vehicle your swapping parts around. Just makes life simpler because the wire colors may change from X to X but the PCM's pins and connector pinouts do not change The PCM and wiring diagrams I use are for the 0411 or P01 GM PCM that has the Blue and Red PCM connectors. The Blue connector is referred to as C1 and the Red connector is referred to as C2.
The Non Transmission related inputs needed to the 0411 PCM:
0411 PCM Ground (GOOD ENGINE/TRANSMISSION GROUND OR BATTERY GROUND):
C1 Blue connector Pin 1 & 40
C2 Red Connector Pin 1 & 40
0411 PCM 12VDC Power (20 amp fuse, wired directly to battery positive):
C1 Blue connector Pin 20 & 57
0411 PCM 12VDC Ignition Power (20 amp fuse, wired directly to ignition switch and needs power in both run and crank, this is what turns "on" the 0411 PCM):
C1 Blue connector Pin 19 & 75
If you want a "Check Transmission Light" or more commonly known as a check engine light for your transmission.
The 0411 PCM applies a ground to C2 Pin 46. This could be wired to the ground side of a small light bulb to notify you the 0411 PCM has a code in it for something wrong with transmission function.
0411 PCM Class 2 Data Communication (Data wire to OBD2 connector PIN 2)
C1 Blue Connector Pin 58
0411 PCM TPS "Throttle Position Sensor" Input for EFI equipped vehicles. (This is wired to the SIGNAL wire coming out of the TPS sensor.) For EFI equipped vehicles tap into the SIGNAL ONLY.
C2 Red Connector Pin 24
0411 PCM CKP "Crankshaft Position Sensor" Input for EFI equipped vehicles. (This is wired to the SIGNAL wiring coming out of the CKP sensor.) For EFI equipped vehicles tap into the SIGNAL ONLY.
C1 Blue Connector Pin 12
FOR CARB OR NON-EFI EQUIPPED INSTALLS:
0411 PCM TPS "Throttle Position Sensor"
C2 Red Connector Pin 24 to Signal Wire coming out of TPS Sensor
C1 Blue Connector Pin 46 to 5VDC Power wire for TPS Sensor
C1 Blue Connector Pin 46 to Ground wire for TPS Sensor
0411 PCM CKP "Crankshaft Position Sensor"
C1 Blue Connector Pin 12 to Signal Wire coming out of CKP Sensor
C1 Blue Connector Pin 2 to Power Wire for CKP Sensor
C1 Blue Connector Pin 21 to Ground Wire for CKP Sensor
0411 PCM Brake Switch Input. (This is wired to the Positive wire coming from your brake pedal switch to your brake lights.)
C1 Blue Connector Pin 33
The Transmission Related Inputs/Outputs needed to the 0411 PCM:
Because the Transmission connector isnt as clearly marked as the PCM connectors are, heres a diagram. This is looking AT THE CONNECTOR, THE SIDE THAT MATES WITH THE TRANSMISSION
EDIT 9/26/16 - Now I have over 400 miles on this stand alone transmission controller. I also recently turned on the torque converter clutch to activate in overdrive. Everything is working perfectly and shifts just like it should.
As the subject says. This is for those guys who are running MegaSquirt, carb or something other than a factory computer for their engines. This write-up is for OPERATION OF THE 4L80E TRANSMISSION. I (Dale Follett) can write up how to make it work on a 4L60e too if theirs enough interest into it.
History:
I (Dale Follett) was tired of having my LS engine/4L80e transmission wired up for full manual valve body and wanted it to shift itself automatically like a factory unit. This could easily be done by swapping around the entire engine computer and harness back to a factory style PCM, BUT my car is wired up with MegaSquirt 2 and I like its features. A Microsquirt and 4L80e harness is $450.00, but thats a bit much to swing just for automatic transmission control and I wanted a cheaper option. This is what I came up with, only cost 2 HP tuners Licencing credits and a PCM from the junkyard (Total of $125.00) and some of my time.
Required Parts or Tools>
HP tuners interface or someone who has a HP tuners interface.
0411 PCM that was a throttle body drive by cable setup. Does not matter if it was a 4L60E or 4L80E BUT having a computer that ran your transmission from the factory from the junkyard is easier.
All your normal wiring crap. Soldering Iron, wire strippers, electrical tape or if you want to be fancy heat shrink, wire, etc. All the Transmission electrical connectors, and the Factory PCM electrical connectors, and a OBD2 diagnostics port connector for the HP tuners interface to PCM communications.
As already stated this is for the 4L80E GM transmission WITH THE UPDATED PASS THROUGH TRANSMISSION CONNECTOR.
The only required PCM inputs from the engine is only RPM and throttle position. The rest of the PCM's inputs come from the transmission itself.
Biggest thing here is PCM selection. You need a PCM that runs a 4L80E preferably or 4L60E that also reads the crankshaft position wheel. Example, my firebird setup is running a 4.8L LS gen 3 engine that has the 24X wheel. So for the PCM or tune file, it needed to be out of a vehicle that had the LS 24X crankshaft position sensor wheel so the PCM's RPM input would read accurately. If your running a older style 350 small block chevy you would need a PCM out of a chevy express van and setup the engine for the same crankshaft position sensor and wheel to get the correct RPM input into the PCM.
The next thing is TPS. For us using EFI this is no big deal because we already have a TPS sensor. For those of you who are looking into doing this for your carburated setups, you'll need to fabricate a mount onto your carb for a TPS sensor. This PCM REQUIRES A TPS INPUT in order to function correctly as a transmission control module.
Now on how to wire it in. Their are no pre-made wiring harness' for this so you will have to make your own harness. It is not that hard though and NOTHING compared to building a engine wiring harness. I go by pinout count and connector pin counts to do my wiring harness' because the wiring colors may be different from make and model vehicle your swapping parts around. Just makes life simpler because the wire colors may change from X to X but the PCM's pins and connector pinouts do not change The PCM and wiring diagrams I use are for the 0411 or P01 GM PCM that has the Blue and Red PCM connectors. The Blue connector is referred to as C1 and the Red connector is referred to as C2.
The Non Transmission related inputs needed to the 0411 PCM:
0411 PCM Ground (GOOD ENGINE/TRANSMISSION GROUND OR BATTERY GROUND):
C1 Blue connector Pin 1 & 40
C2 Red Connector Pin 1 & 40
0411 PCM 12VDC Power (20 amp fuse, wired directly to battery positive):
C1 Blue connector Pin 20 & 57
0411 PCM 12VDC Ignition Power (20 amp fuse, wired directly to ignition switch and needs power in both run and crank, this is what turns "on" the 0411 PCM):
C1 Blue connector Pin 19 & 75
If you want a "Check Transmission Light" or more commonly known as a check engine light for your transmission.
The 0411 PCM applies a ground to C2 Pin 46. This could be wired to the ground side of a small light bulb to notify you the 0411 PCM has a code in it for something wrong with transmission function.
0411 PCM Class 2 Data Communication (Data wire to OBD2 connector PIN 2)
C1 Blue Connector Pin 58
0411 PCM TPS "Throttle Position Sensor" Input for EFI equipped vehicles. (This is wired to the SIGNAL wire coming out of the TPS sensor.) For EFI equipped vehicles tap into the SIGNAL ONLY.
C2 Red Connector Pin 24
0411 PCM CKP "Crankshaft Position Sensor" Input for EFI equipped vehicles. (This is wired to the SIGNAL wiring coming out of the CKP sensor.) For EFI equipped vehicles tap into the SIGNAL ONLY.
C1 Blue Connector Pin 12
FOR CARB OR NON-EFI EQUIPPED INSTALLS:
0411 PCM TPS "Throttle Position Sensor"
C2 Red Connector Pin 24 to Signal Wire coming out of TPS Sensor
C1 Blue Connector Pin 46 to 5VDC Power wire for TPS Sensor
C1 Blue Connector Pin 46 to Ground wire for TPS Sensor
0411 PCM CKP "Crankshaft Position Sensor"
C1 Blue Connector Pin 12 to Signal Wire coming out of CKP Sensor
C1 Blue Connector Pin 2 to Power Wire for CKP Sensor
C1 Blue Connector Pin 21 to Ground Wire for CKP Sensor
0411 PCM Brake Switch Input. (This is wired to the Positive wire coming from your brake pedal switch to your brake lights.)
C1 Blue Connector Pin 33
The Transmission Related Inputs/Outputs needed to the 0411 PCM:
Because the Transmission connector isnt as clearly marked as the PCM connectors are, heres a diagram. This is looking AT THE CONNECTOR, THE SIDE THAT MATES WITH THE TRANSMISSION
 0411 PCM Torque Converter Clutch Control (Wired to pin S on the transmission connector) C2 Red Connector Pin 2 0411 PCM 1-2 Shift Valve (Wired to pin A on the transmission connector) C2 Red Connector Pin 48 0411 PCM 2-3 Shift Valve (Wired to pin B on the transmission connector) C2 Red Connector Pin 47 0411 PCM Transmission Fluid Pressure Switch Signal A (Wired to pin N on the transmission connector) C2 Red Connector Pin 63 0411 PCM Transmission Fluid Pressure Switch Signal B (Wired to pin R on the transmission connector) C1 Blue Connector Pin 17 0411 PCM Transmission Fluid Pressure Switch Signal C (Wired to pin P on the transmission connector) C1 Blue Connector Pin 18 0411 PCM Transmission Fluid Temperature Sensor Signal (Wired to pin L on the transmission connector) C2 Red Connector Pin 51 0411 PCM Transmission Pressure Control Solenoid Control Ground (Wired to pin D on the transmission connector) C2 Red Connector Pin 8 0411 PCM Transmission Pressure Control Solenoid Control Power (Wired to pin C on the transmission connector) C2 Red Connector Pin 6 0411 PCM Transmission Input Shaft Speed Sensor (This is the sensor right behind the bell-housing of the transmission. The Input/Output shaft speed sensors on the 4L80E transmission are not polarity sensitive, and just simply need wired to the PCM) C2 Red Connector Pin 22 for one wire and C2 Red Connector Pin 23 for the other wire coming from the Input Shaft Speed Sensor 0411 PCM Transmission Output Shaft Speed Sensor (This is the sensor near the back of the transmission. The Input/Output shaft speed sensors on the 4L80E transmission are not polarity sensitive, and just simply need wired to the PCM) C2 Red Connector Pin 20 for one wire and C2 Red Connector Pin 21 for the other wire coming from the Output Shaft Speed Sensor |
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