A/T - W5A580 Oil Temperature Monitoring
307-06DATE
3/98
V8 XJ Series
MODEL
1998 MY-ON
V8 XJR
VIN
812256-ON
W5A580 Transmission - Monitoring Transmission Oil Temperature in D or R During Diagnosis
Issue:
The procedure for Transmission Fluid Drain and Refill (44.24.02.) on JTIS notes that the selector lever must be in D or R when checking transmission oil temperature using the PDU. (For the fluid level check, refer to section 307-01B, Transmission Fluid Drain and Refill 44.24.02, step 7 and 8.)
Due to a limited number of output pins of the TCM, it is not possible to provide the transmission oil temperature in selector lever positions other than D or R.
When the selector lever is in N or P, the PDU will actually display engine coolant temperature (obtained from the Controller Area Network CAN) instead of transmission oil temperature, possibly misleading the technician.
Action:
To check transmission fluid temperature using the PDU, make the following menu selections: DIAGNOSTICS, TOOLBOX, POWERTRAIN, DATALOGGER, TRANSMISSION, TOT (transmission oil temperature).
When checking the transmission oil temperature readings, depress the brake pedal and make sure the selector lever is in D or R.
Warranty Information: