XJ-S V12-5.3L (1982)
Trip Computer: Technical Service Bulletins
Trip Computer - Change in ECU Pin
DATE . . . FEBRUARY, 1985
NUMBER . . .J85/10
MODEL:
XJ6 & XJ-S
SUBJECT:
TRIP COMPUTER MALFUNCTIONS;
KEY POINTS:
CHANGE IN ECU PIN
TERMINATION IN LEAD FROM INTERFACE UNIT.
Technical Service Bulletin J83/53, issued in September, 1983, provided notes to assist in trip computer fault diagnosis.
The (b) Symptom-Cause paragraph refers to the yellow/green lead between the interface unit and pin 26 of the EFI ECU. This is correct for the XJ6,
however, on the XJ-S the yellow/green lead connects to pin 29 of the EFI ECU.
