Static Testing - Engine OFF

DESCRIPTION
Static testing procedures allow for shop testing of the transmission in the vehicle or on the bench. Completion of these tests proves out transmission electronics.

RESISTANCE/CONTINUITY TESTS
CAUTION: For resistance checks, make sure the tester solenoid select switch is set to the OHMS CHECK position or damage to the ohmmeter may result.
- Perform the appropriate pinpoint test based on the DTCs displayed.
- Using a digital volt-ohmmeter and the transmission tester, perform the pinpoint tests as indicated based on the DTCs displayed.
- Repair as indicated by the pinpoint tests. Always retest and road test vehicle after service.

RESISTANCE/CONTINUITY TESTS - EPC SOLENOID
- Set the ohmmeter to 100-200 ohm range.
- Connect the negative lead of ohmmeter to the electronic pressure control (EPC) jack.
- Connect the positive lead of ohmmeter to the vehicle power (VPWR) jack.
- Record the resistance.
- Refer to the E4OD Solenoid Resistance Specifications chart below for values.

If out of specification, refer to Pinpoint Test E. E: Electronic Pressure Control (EPC) Solenoid

RESISTANCE/CONTINUITY TESTS - SHIFT SOLENOID 1, SHIFT SOLENOID 2, TORQUE CONVERTER CLUTCH SOLENOID, COAST CLUTCH SOLENOID
- Set the ohmmeter to 100-200 ohm range.
- Connect the positive lead of ohmmeter to the appropriate vehicle power (VPWR) jack for the solenoid being tested.
- Connect the negative lead of the ohmmeter to the appropriate solenoid (shift solenoid 1 [SS1], shift solenoid 2 [SS2], torque converter clutch solenoid [TCC], coast clutch solenoid [CCC]) jack and record resistance.

Refer to the following charts for values.

If out of specification, refer to Pinpoint Test A (shift solenoid 1, shift solenoid 2), Pinpoint Test C (torque converter clutch solenoid) or Pinpoint Test G (coast clutch solenoid). Pinpoint Tests
E4OD Solenoid Resistance Specifications
Shift Solenoid 1: 20-30 ohms
Shift Solenoid 2: 20-30 ohms
Torque Converter Clutch Solenoid: 20-30 ohms
Coast Clutch Solenoid: 20-30 ohms
Electronic Pressure Control Solenoid: 4.0-6.5 ohms

RESISTANCE/CONTINUITY TESTS - TRANSMISSION FLUID TEMPERATURE (TFT) SENSOR
- Set the ohmmeter to 1000-ohm (k) scale.
- Connect the ohmmeter positive lead to TFT+ jack.
- Connect the ohmmeter negative lead to TFT- jack.
- Record the resistance. Resistance will vary with temperature.
- Refer to the following chart for values.
TFT Sensor Resistance Specifications
-40 to -20° C (-40 to -4° F): 967k-248k ohms
-19 to -1° C (-3 to 31° F): 248k-100k ohms
0 to 20° C (32 to 68° F): 100k-37k ohms
21 to 40° C (69 to 104° F): 37k-16k ohms
41 to 70° C (105 to 158° F): 16k-5k ohms
71 to 90° C (159 to 194° F): 5k-2.7k ohms
91 to 110° C (195 to 230° F): 2.7k-1.5k ohms
111 to 130° C (231 to 266° F): 1.5k-0.8k ohms
131 to 150° C (267 to 302° F): 0.8k-0.54k ohms

If out of specification, refer to Pinpoint Test B. B: Transmission Fluid/Oil Temperature (TFT/TOT) Sensor

SOLENOID VOLTAGE TEST
1. Set the tester bench/drive switch to BENCH mode.
2. Set the voltmeter to 20-volt DC range.
3. Connect the voltmeter positive lead to the appropriate solenoid vehicle power (VPWR). Connect voltmeter negative lead to the appropriate solenoid.
4. Using a digital volt-ohmmeter (DVOM), check for voltage across each solenoid by activating the solenoid switches. Press the appropriate switch. The LED should illuminate, the voltage should change and an audible click may be heard. If LED does not illuminate, a short to ground condition exists.

NOTE: LED will turn GREEN when solenoid activates and turn off when deactivated. LED will turn RED if an activated solenoid is shorted to B+. LED will remain off if an activated solenoid is shorted to ground or if there is no continuity.

5. Observe and record values.