Wiring diagram for a 4l60e transmission - Notes: for the strain manage (computer) solenoid: you need a minimum 4.7 ohm (or better resistance - up to ~10 ohms), 10 watt (or more) resistor (such as digi-key four.7cwbk-nd, $1.Sixty seven) at the stress manipulate solenoid cord from the trans connector pin d to the gpio board's pin 33. This resistor dissipates up to four watts of energy at low line pressures (most pwm probabilities). As a end result, the resistor can get warm, so mount it on a warmth sink (preferably a metal block) in a place with lots of air circulate. At the side of that resistor, you may want a 1n4001 recirculation diode placed among pin c and d at the 4l60e connector (the toward the transmission connector the better). Be cautious to orient the diode successfully. These additional outside components reduce the flyback spikes from the solenoid to attainable degrees stopping damage to diverse gpio board additives and probably cleansing up outside indicators consisting of the vss. Any solenoid that is pulse width modulated (which includes the shift solenoid outputs, tcc, and luf), if they're pwm'd) require that you placed a flyback diode on the solenoid. The illustrated instructions are right here: recirculation diode commands. Installation an external diode among that solenoid's voltage supply and the road going to the gpio board. The banded end of the diode is going to the voltage supply cord, the non-banded quit of the diode goes to the line to the gpio board. Set up the diode as near the solenoid as is convenient. The 1n4001 diode is hooked up externally to avoid bringing high-voltage noise into the gpio. 1n4001 diodes are to be had at honestly any electronics deliver shop. With out this outside diode within the pwm circuits, you can harm a few internal additives. The four resistors for the leds can be 330 to 390 ω, ¼ watt. In case you need a 'mode choice switch' to pressure vehicle mode or allow manual mode, you can do this with a switch and two diodes (1n4001 or equal): (this circuit most effective works with 'shift button polarity' = "energetic low".) When the mode switch is closed, vehicle mode may be used, no matter what you do with the shift buttons. If the mode transfer is open, pushing both the upshift button or downshift button will placed you in guide mode (and pushing each or switching the mode select switch to car will positioned you again in car mode). Sensors: the 4l60e makes use of three sorts of sensors: temperature sensor, used to decide tcc lock-up, three stress switches (not that these are from time to time known as 'transmission stress switches, tps, however they ought to no longer be stressed with the throttle position sensor), used to determine the currently decided on tools (i.E., The shift lever role), automobile pace sensor (variable reluctance [vr] type), used for a number of standards. Notes: there's an early and a late model of the 4l60e transmission. The difference is the addition of the "lockup experience" solenoids (aka. Tcc pwm solenoid). Vss (car pace sensor) on 2wd vehicles is in transmission extension housing, on 4wd vehicles the vss is in switch-case. The european additionally senses a brake switch and turns off the tcc solenoid each time brakes are implemented. Tcc lock-up solenoid is generally best energized in 4th tools, if the transmission temperature is above 250°f it'll energize it in second and 3rd as properly. Responsibility cycle at the stress control solenoid is inversely proportional to the throttle attitude (as throttle angle will increase, responsibility is decreased). At idle (minimal throttle), the obligation is at max (60). At wot (wide open throttle), the responsibility is at min (zero or off). Be aware that the computer solenoid takes the location of the throttle valve cable on earlier transmissions. In the tunerstudioms interface, the 0-60 sign has been transformed to a forty-100 sign, in which a hundred manner most line strain, and forty manner minimal line stress. This *must* be extra intuitive for the user, with any luck. All solenoids share not unusual 12v line on pin e (besides pressure manipulate solenoid, which has its own 12 volt deliver on pin c) and are switched on and off with floor. Shift patternsol a (1-2/three-four) output1sol b (2-3) output23-2 sol output3tcc sol (lu)lockup feel***strain manipulate solenoid solratio parkononon #on *n/a reverseonon on #on *2.294 neutralononon #on *n/a 1stononon #on *three.059 2ndoffonon ***on/off**on #on *1.625 3rdoffoffon ***on/off**on #on *1.000 4thonoffon ***on #on * zero.696 luonoffon ***on**on #on *n/a * the strain manipulate solenoid controls primary line strain, pulsed at 0-60 responsibility cycles at 293 hertz. There is no cleansing pulse (dither) every 10 seconds on this transmission (not like the 4l80e). ** The tcc is pulsed (frequency is 32 hertz, with responsibility cycle varied). Most modern ought to no longer exceed 1.5 amps. *** The three-2 sol is pulsed at 50 hertz, zero obligation in 1st, ninety responsibility in all different gears. During a three-2 downshift, the duty is reduced and this responsibility is associated with the car velocity; lower velocity, decrease obligation. # The lock-up sense (luf) solenoid turned into probably put in excessive give up cadillacs for seamless moving. In first gear, at approximately 13 km/h (8 mph), the oem eu pulses the luf (aka. Tcc pwm) solenoid valve at about 90 percent duty cycle. This duty cycle is maintained till a tcc follow is commanded. While car operating situations are suitable to apply the tcc, the oem eu right away decreases the obligation cycle to 0 percent, then will increase it to approximately 25. The oem european then ramps the responsibility cycle up to approximately 50 to gain regulated follow stress in motors geared up with the electronically controlled clutch capability (eccc). With the eccc machine, the stress plate does no longer completely lock to the torque converter. As a substitute a regular slip of 20 to forty rpm is maintained. The rate of growth of the duty cycle controls the tcc observe price. Further, the pcm additionally ramps down the luf solenoid responsibility cycle to manipulate tcc release. With some excessive torque or excessive vehicle speeds, the converter grab is absolutely locked by the oem eu. Solenoids: solenoidresistance (ohms at 68°f)standard inductance (millihenries) solenoid a20 - 4043.0 solenoid b20 - 4043.Zero 3-2 solenoid9 - 1414.1 tcc20 - 4056.9 lu feel10 - 11.5not acknowledged pressure control3.5 - 4.58.1 stress switch manifold the pressure switch manifold (psm) is a a couple of switch meeting together with three typically open (no) pressure switches and a pair of generally closed (n/c) pressure switches. Fluid from diverse hydraulic manipulate circuits is fed to this the strain transfer manifold which lets in the european to determine which equipment the shift lever is currently shifted into (no longer necessarily the actual tools the transmission is in). The switch contacts are typically open and near whilst fluid strain reasons them to. Relying upon the circuit, the switch can also offer a floor route when closed. The desk under indicates a pin this is grounded via the psm as a "0", at the same time as an open circuit shows a 12 (volts). Gearpin n input1pin r input2pin p input3 parkhighlowhigh reverselowlowhigh neutralhighlowhigh 4th (overdrive)highlowlow 3rd (drive)highhighlow 2ndhighhighhigh 1stlowhighhigh case connector pinfunction asol a (1-2/3-four) switched gnd output1 bsol b (2-3) switched gnd output2 e 12 electricity npressure switch a input1 rpressure switch b input2 ppressure switch c input3 mtemperature sensor gnd ltemperature sensor sign s3-2 solenoid switched gnd output3 dpressure control solenoid switched gnd cpressure manage solenoid 12v ulu experience solenoid switched gnd ttcc solenoid switched gnd most important line strain faucet megashift has a line strain sensing/logging feature constructed it. It's far digikey msp6907-nd for $114. It's a 0.Five-4.Five volt output (accuracy &plusminus;5 psi), and has just a three wire hookup: 5v from vref on ampseal pin #28, ground, and signal to ampseal pin #27. It has a 1/eight npt fitting - similar to the transmission port. But, a ninety° elbow, or perhaps even some tubing, can be required in most installs to preserve the sensor far from the transmission tunnel. 4l60e temperature sensor output °c°f r (ohms) -forty-forty 100544 -28 -21 52426 -16 -10 18580 -4 23 12300 0 32 9379 7 forty 7270 19 sixty eight 3520 31 86 2232 forty three 110 1200 55 131 858 67 145 675 79 176 333 91 194 241 103 213 154 one hundred fifteen 239 one hundred fifteen 127 260 79 139 284 60 151 302 forty seven megasquirt® and microsquirt® controllers are experimental gadgets meant for academic purposes. Megasquirt® and microsquirt® controllers aren't for sale or use on pollutants controlled vehicles. Take a look at the laws that observe on your locality to decide if using a megasquirt® or microsquirt® controller is legal in your software. ? 2004, 2016 bruce bowling and al grippo. All rights reserved. Megasquirt® and microsquirt® are registered emblems. This record is solely for the support of megasquirt® forums from bowling and grippo. Inputs to gpio pinfunction ltemperature sensor sign mtemperature sensor gnd npressure switch a (aka. Input1) rpressure transfer b (aka. Input2) ppressure transfer c (aka. Input3) n/a2wd/four wheel drive enter (floor for 4wd) n/avehicle pace sensor (vss) - has its very own 2-pin connector.
Outputs from gpio pinfunctioncontrollimits asol a (1-2/three-4) switched gnd (aka. Output1)on/off20-40 ohms (zero.Seventy five amps max.) Bsol b (2-three) switched gnd (aka. Output2)on/off20-forty ohms (0.75 amps max.) Cpressure manage solenoid highpower (nominal 12v)switched 12v from harness dpressure manage switched gndpwm (293hz)0 to 60 (3.5 - four.6 ohms at 20°c, 1.1 amps max.) E 12 volt powerhigh (nominal 12v)switched 12v from harness ulock-up feel solenoid switched gnd now not constantly usedpwm (32 hertz) 10-eleven.5 ohms at 20°c s3-2 sol switched gnd (aka. Output3)pwm (50hz)nine-14 ohms at 20°c ttorque converter clutch solenoid switched gndon/off20-forty ohms (1.Five amps max.). Functionportcircuitampseal pin sol a (output1)pe4vb323 sol b (output2)pm2vb435 sol32 (output3)pt1pwm434 pcpt2pwm333 tccpt3pwm232 led1pm4gpo110 led2pm3gpo27 led3pm5gpo38 led4pb4gpo49 switcha (input1)ad0egt4 (jumper)26 switchb (input2)ad1gpi26 switchc (input3)ad3egt325 paddle uppt6vr215 paddle downad6gpi54 vsspt0vr12 temp sensorad2gpi330 brake sensead7gpi43 speedo outputpt4pwm131 non-can map/tps/mafad5egt124 line pressure sensorad4egt227 2wd/4 wheel drive switchpe1gpi15 spare output1 (lu feel/seize)pt7vb1 (jumper)11 spare output2 (seize)pa0vb212.
On ms-ii controllers, the can paths are: canh: cpu pin pm0 (#45) → forty-pin socket pin 6 → js6 jumper to spr1/canh → db37 pin 3, canl: cpu pin pm1 (#44) → 40-pin socket pin eleven → js8 jumper to spr2/canl → db37 pin 4.