3: Static Testing - Engine OFF

Rotunda Transmission Tester

Step1
Preliminary Testing and Diagnosis
1: Preliminary Testing and Diagnosis

Step2
Transmission Tester Installation (Set-Up Procedures)
2: Installing the Transmission Tester

Step 3
Static Testing - Engine OFF
Static testing procedures allow for shop testing of the transaxle in vehicle or on the bench. Completion of these tests prove out transaxle electronics.

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

Resistance/Continuity Tests
- Refer to the proper Pinpoint Test to be performed based on the DTCs displayed.
- Using Digital Volt/Ohmmeter and the transmission tester, perform the Pinpoint Tests as indicated based on the DTCs which were displayed.
- Service as indicated by the Pinpoint Tests. Always retest and road test vehicle after any service.

Transaxle Solenoids and Sensor Resistance Tests
EPC Solenoid
1. Set ohmmeter to 100-200 OHM range.
2. Connect positive lead of ohmmeter to the VPWR jack.
3. Connect negative lead of ohmmeter to the EPC jack.
4. Record resistance.
5. Refer to the following chart for values.
Solenoid Solenoid Resistance (Ohms)
EPC 3.23-5.5
6. If out of specification, perform "Pinpoint Test E".

Solenoids (SS-1, SS-2, SS-3, TCC)
1. Set ohmmeter to 100-200 OHM range.
2. Connect positive lead of ohmmeter to the appropriate VPWR jack for solenoid being tested.
3. Connect negative lead of ohmmeter to the appropriate solenoid (SS-1, SS-2, SS-3, TCC) jack.
4. Record resistance.
5. Refer to the following chart for values.
Solenoid Solenoid Resistance (Ohms)
SS-1 15-25
SS-2 15-25
SS-3 15-25
TCC 0.98-1.6
6. If out of specification:
Perform "Pinpoint Test A" (SS-1, SS-2, SS-3)
Perform "Pinpoint Test C" (TCC).

Transmission Oil Temperature (TOT)
1. Set ohmmeter to 1000 OHM range.
2. Connect ohmmeter positive lead to +TOT jack.
3. Connect ohmmeter negative lead to -TOT jack.
4. Record resistance. Resistance will vary with temperature.
5. Refer to the following chart for values.






6. If out of specification, perform "Pinpoint Test B" .

Transmission Speed Sensor (TSS) - AX4S
1. Set ohmmeter to 100-200 OHM range.
2. Connect positive lead of ohmmeter to +TSS jack.
3. Connect negative lead of ohmmeter to -TSS jack.
4. Record resistance.
5. TSS should be between 100-200 ohms.
6. If out of specification, perform "Pinpoint Test F".

Short to Ground and Solenoid Voltage Tests

Note: LED will turn GREEN when solenoid activates and turn OFF when deactivated. LED will turn RED if an activated solenoid/harness is shorted to B+. LED will turn OFF if an activated solenoid/harness is shorted to ground or no continuity (open circuit).

1. Set tester Bench/Drive switch to BENCH mode.
2. Set voltmeter to 20 VOLT DC range.
3. Connect voltmeter positive lead to solenoid signal+(VPWR). Connect voltmeter negative lead to solenoid negative. Depress the appropriate switch.
4. The LED should illuminate, voltage should change and an audible click may be heard. If LED does not illuminate, a short to ground condition exists.
5. Observe and record values.

Step 4
Dynamic Testing - Engine Running
4: Dynamic Testing - Engine Running

Step 5
Transmission Tester Removal and Clearing DTCs
5: Removing Tester & Clearing Codes