Static Testing - Engine OFF

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

CAUTION: For resistance checks, be sure the tester solenoid select switch is set to the OHMS CHECK position or damage to the ohmmeter may result.

- Refer to the appropriate pinpoint test for the DTCs displayed.
- Use a 73 Digital Multimeter and the transmission tester to perform the pinpoint tests as indicated by DTCs displayed.
- Repair as indicated by the pinpoint tests. Always retest and road test vehicle after repair.

RESISTANCE/CONTINUITY TESTS - EPC SOLENOID
1. Set multimeter to 100-200 ohm range.
2. Connect negative lead of multimeter to the EPC jack.
3. Connect positive lead of multimeter to the VPWR jack.
4. Record resistance.
5. Compare results to the following Solenoid Resistance chart for values.
6. If out of specification, refer to Pinpoint Test E.

RESISTANCE/CONTINUITY TESTS - SOLENOIDS (SST, SS2, TCC)
1.Set multimeter to 100-200 ohm range.
2. Connect positive lead of multimeter to the appropriate VPWR jack for the solenoid being tested.
3. Connect negative lead of the multimeter to the appropriate solenoid (SS1, SS2, MCCC) jack and record resistance.
4. Compare results to following Solenoid Resistance chart.
- If out of specification, refer to Pinpoint Test A (SS1, SS2)

or Pinpoint Test C (TCC).

Solenoid Resistance
SS1: 20-30 ohms
SS2: 20-30 ohms
TCC: 10-16 ohms
EPC: 2.48-5.66 ohms

RESISTANCE/CONTINUITY TESTS-TRANSMISSION FLUID TEMPERATURE (TFT) SENSOR
1. Set multimeter to 1000 ohm scale.
2. Connect multimeter positive lead to TOT+ jack.
3. Connect multimeter negative lead to TOT- jack.
4. Record resistance. Resistance will vary with temperature.
5. Compare results to the following chart.
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

6. If out of specification, refer to Pinpoint Test B.

RESISTANCE/CONTINUITY TESTS OUTPUT SHAFT SPEED (OSS) SENSOR
1. Set multimeter to 1000 ohm scale.
2. Connect the positive lead of the multimeter to the (+)OSS.
3. Connect the negative lead of the multimeter to the (-)OSS.
4. Record resistance.
5. OSS should be 450-750 ohms. If out of specification, refer to Pinpoint Test F.

SOLENOID VOLTAGE TEST
1. Slide MODE switch to BENCH position.
2. Set multimeter to 20 volt DC range.
3. Select one solenoid to test and connect the multimeter leads as follows:
- If testing SS 1 or SS2, turn the SOLENOID SELECT dial to SS1 or SS2 before hooking up leads.
- If testing EPC or TCC, continue.
- Connect negative lead to the appropriate solenoid jack.
- Connect positive lead to the appropriate VPWR jack.

4. Press the solenoid ACTIVATE button and check voltage.
- The LED should light, the voltage should change, and an audible click may be heard.

5. Observe and record values.
LED Status:
- LED turns green when solenoid activates and OFF when deactivated.
- LED turns red if an activated solenoid/harness is shorted to B+.
- LED remains OFF if an activated solenoid/harness is shorted to ground or no continuity.