Tester Description

Use Transmission Tester and CD4E Update Kit to diagnose electronically controlled transaxles. The following instructions outline the set-up and use of this tester in the pinpoint tests for the CD4E.

OVERLAYS AND ADAPTERS
The following transmission tester overlays and adapters must be used with the Transmission Tester or to properly diagnose the CD4E transaxle.

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 Transmission Fluid Temperature (TFT).
5. TSS Pin Jacks: Test points for turbine shaft speed sensor.

TESTER LEDS AND CONTROLS
1. Overlay and cable correctly installed LEDs:
- Only LEDs with the 0 symbol will not light when the overlay and cable match correctly.
2. Status LEDs:
- LED OFF when not activated by the tester (solenoid not activated, open circuit, or signal line short to ground).
- LED green when activated by the tester and current draw is correct.
- LED red when activated by tester and current draw is excessive (short at VPWR).
- 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. Tester mode switch:
- Selects operating mode, either bench or drive.
5. Solenoid select/gear select switch:
- Has three functions:
- Bench mode: acts as shift solenoid selector for click testing.
- Drive mode: acts as forward gear selector in place of vehicle PCM-controlled shifting. Hydraulic safety mechanisms and overrides are built into the transaxle.
- Ohms check: allows measurement of ohms and checks for presence of a diode on specific solenoids.

TESTER INSTRUCTIONS
The Transmission Tester allows a technician to operate the electrical portion of the transaxle independent of the vehicle electronics to determine specific transaxle concerns. The Transmission Tester usage is divided into five steps:
1. Preliminary testing and diagnosis.
2. Installing the Transmission Tester.
3. Static testing - engine off.
4. Dynamic testing - engine running.
5. Removing the Transmission Tester and clearing Diagnostic Trouble Codes (DTCs).