Tester Description

Transmission Tester, (Part 1 Of 2):

Transmission Tester, (Part 2 Of 2):

CAUTION: To properly diagnose an AX4N transaxle, the Rotunda Transmission Tester (007-00130) or equivalent Must have been updated for AX4N compatibility. This update includes internal software and related components and a new cable and overlay. Inspect your tester for the AX4N Compatible label located near the tester's cable connector. If the label is missing, do not use the tester to diagnose the AX4N transaxle. Contact Rotunda Equipment or supplier as listed in instruction manual for information on how to have the tester updated.

DESCRIPTION
Use Rotunda Transmission Tester 007-00130 or equivalent to diagnose electronically controlled transaxles. The following instructions describe the set-up and use of this tester in the pinpoint tests for the AX4N.

OVERLAYS AND ADAPTERS
The following transaxle tester overlays and adapters must be used with the Rotunda Transmission Tester 007-00130 or equivalent to properly diagnose the AX4N transaxle.
- Rotunda AX4N Transmission Tester Update 007-00105 or equivalent
- Rotunda TR/MLP Sensor Tester Overlay 007-001 17 or equivalent
- Rotunda Transmission Range (TR) Sensor Cable (MLP-B Cable) 007-00127 or equivalent.

TESTER JACKS
1. VPWR Pin Jacks (red): VPWR test points for solenoid circuits.
2. Solenoid (TCC, EPC) Signal Line Pin Jacks (black): Signal line test points for solenoid circuits.
3. BAT+ (red) and BAT-(black) Pin Jacks: Battery reference points when measuring circuits for shorts.
4. TFT Pin Jacks: Test points for TFT sensor.
5. TSS Pin Jacks: Test points for TSS sensor.

LEDs AND CONTROLS
1. Overlay and Cable Correctly Installed LEDs:
Only LEDs with the (O) symbol will not light when the overlay and cable match correctly.
2. Status LEDs:
LED OFF when not activated by tester (solenoid not activated, open circuit or signal line short to ground). LED green when activated by tester and current draw is correct. LED red when activated by tester and current draw is excessive (short at VPWR). (3) All LEDs light orange during self-test.
3. Solenoid Activate buttons:
Energize respective solenoids during click testing and activate selected circuits during DRIVE mode testing.
4. MODE switch:
Selects operating mode, either BENCH or DRIVE.
5. SOLENOID SELECT/GEAR SELECT switch: Has three functions:
(1) BENCH mode: acts as shift solenoid selector for click testing.
(2) DRIVE mode: acts as forward gear selector in place of vehicle's PCM-controlled shifting. Hydraulic safety mechanisms and overrides are built into the transaxle.
(3) OHMS check: allows you to measure ohms and to check for presence of a diode on specific solenoids.