i changed the tranny but problem is still there(poor shifting, stalling, slipping...). here is the read out from the TCU:
RED= FAILED (NO SIGNAL)
BLUE= PASSED
Key on Engine Off. Meter set to DC volts. 5- to 8-volt Speed Sensor pulse per one revolution
Key On Engine Off. Selector Lever in the 1-2 position. Meter set to DC volts
Battery Voltage*
Key On Engine Off. Selector Lever in the D Battery Voltage* position. Meter set to DC volts.
Key On Engine Off. Meter set to DC volts
Brake OFF. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 Volts
Brake ON. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Battery voltage
Key On Engine Off. Meter set to DC volts
Comfort switch in POWER mode . . . . . . . . . . . . . . . Battery Voltage
Comfort switch in COMFORT mode . . . . . . . . . . . . . 0 volts
Key Off. TCU unplugged. Meter set to Ohms Converter Clutch Solenoid Resistance 11-15 ohms
Key Off. TCU unplugged. Meter set to Ohms Shift Solenoid #2 11-15 ohms
Key Off. TCU unplugged. Meter set to Ohms Shift Solenoid #1 11-15 ohms
Key On Engine Off. Meter set to DC Volts TPS Voltage Supply Approx. 5 Volts
Key On Engine Off. Meter set to DC Volts D2 TPS Voltage Input Closed Throttle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Approx. 4.5 Volts Wide Open Throttle. . . . . . . . . . . . . . . . . . . . . . . . . . Approx. 0.5 Volts
Key On Engine Off. Meter set to DC Volts 0.1 Volt TPS Ground or less
Key Off. Meter set to DC Volts Battery Voltage
Key On Engine Off. Meter set to DC Volts Ignition Voltage Battery Voltage
In Drive, it only reads 0.80 V insted of 12
what is wrong?
It's an 88 XJ, 4.0 .
RED= FAILED (NO SIGNAL)
BLUE= PASSED
Key on Engine Off. Meter set to DC volts. 5- to 8-volt Speed Sensor pulse per one revolution
Key On Engine Off. Selector Lever in the 1-2 position. Meter set to DC volts
Battery Voltage*
Key On Engine Off. Selector Lever in the D Battery Voltage* position. Meter set to DC volts.
Key On Engine Off. Meter set to DC volts
Brake OFF. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 Volts
Brake ON. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Battery voltage
Key On Engine Off. Meter set to DC volts
Comfort switch in POWER mode . . . . . . . . . . . . . . . Battery Voltage
Comfort switch in COMFORT mode . . . . . . . . . . . . . 0 volts
Key Off. TCU unplugged. Meter set to Ohms Converter Clutch Solenoid Resistance 11-15 ohms
Key Off. TCU unplugged. Meter set to Ohms Shift Solenoid #2 11-15 ohms
Key Off. TCU unplugged. Meter set to Ohms Shift Solenoid #1 11-15 ohms
Key On Engine Off. Meter set to DC Volts TPS Voltage Supply Approx. 5 Volts
Key On Engine Off. Meter set to DC Volts D2 TPS Voltage Input Closed Throttle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Approx. 4.5 Volts Wide Open Throttle. . . . . . . . . . . . . . . . . . . . . . . . . . Approx. 0.5 Volts
Key On Engine Off. Meter set to DC Volts 0.1 Volt TPS Ground or less
Key Off. Meter set to DC Volts Battery Voltage
Key On Engine Off. Meter set to DC Volts Ignition Voltage Battery Voltage
In Drive, it only reads 0.80 V insted of 12
what is wrong?
It's an 88 XJ, 4.0 .
Last edited: