General
The automatic gearbox is a four speed unit with electronic control of gear selection, shift quality and torque converter lock-up. A starter/ inhibitor/ reverse light switch on the gearbox transmits gear selector position to the EAT ECU, which outputs appropriate signals to an electro-hydraulic valve block in the gearbox. The signals from the starter/ inhibitor/ reverse light switch are also transmitted to the BCU, which uses them to operate the gear selected indicator in the instrument pack.
The EAT ECU is located under the LH front seat below the radio/cassette player power amplifier (if fitted). A mode switch on the gear selector panel allows the driver to change the mode of the ECU operation between manual and sport modes. Warning lamps in the instrument pack are operated by the ECU to indicate control mode and system status.
For component locations, refer to COMPONENT LOCATIONS .
EAT Circuit Supply
A feed from the battery positive terminal is connected on an R wire to the engine compartment fusebox where it passes through fusible link 8 and fuse 12.
The feed from fuse 12 is connected from the fusebox on a PY wire to the EAT ECU pin C0193-26 and supplies a continuous battery feed to the ECU.
The feed from fusible link 8 is connected on an NW wire to the passenger compartment fusebox and from the fusebox to the ignition switch on an N wire.
Ignition Switch Circuit Supply
With the ignition switch in position II, the feed from fusible link 8 passes through the ignition switch to the passenger compartment fusebox on a Y wire, where it passes through fuses 24 and 25.
The feed from fuse 24 is connected from the fusebox to the EAT ECU pin C0193-54 on an LGO wire to inform the ECU that the ignition is on. The feed from fuse 25 is connected from the fusebox to the starter/ inhibitor/ reverse light switch pin C0675-2 on a GY wire.
See also:
• COMPONENT LOCATIONS