Section 10 --- Chassis Information
Cayman 2005
362
Electrical Troubleshooting:
If no display or power to the Shift-by-Wire System occurs when the ignition is on, check the follow-
ing fuses and connections at the front distribution panel, below the driver’s window:
Main Power - Location is the V-Bat Terminal located at the fuse panel, below the driver’s window.
Look for two wires with in-line fuses. Be sure to check the in-line fuses (10 Amp).
Ignition - Location 12 or 13 on the chassis panel.
Grounds - Two located at ground post on the right side of the far right fuse panel.
Remove the Shift Selector from the Console (two U-Brackets from underneath) and check to see of
the connector in the back is firmly plugged in. If it is, then run a continuity check of each of the wires
listed above.
If the display still does not illuminate, replace the Shift Selector with a new one. If the Shift Selector
display illuminates and the transmission does not shift into the various ranges, inspect the two connec-
tors on the Actuator Assembly on the left side of the transmission. One is on a pigtail, and the other is
plugged directly into the position sensor. Ensure both connectors are in good condition (no pushed out
pins or damage) and properly connected.
Transmission Check Light
The electronic control system is programmed to inform the operator of a problem with the trans-
mission system and automatically take action to protect the operator, motorhome and transmission. When
the TCM detects a Range inhibit or Shift inhibit condition, the TCM restricts shifting, turns the CHECK
TRANS light on the instrument panel and registers a diagnostic code.
NOTE:
For some problems, diagnostic codes may be registered without the ECU activating
the CHECK TRANS light. The Allison Transmission authorized service outlet
should be consulted whenever there is a transmission related concern. They have
the equipment to check for diagnostic codes and to correct problems which arise.
Each time the engine is started the CHECK TRANS will light, then turn off after a few seconds. This
momentary lighting is to show that the status light circuits are working properly. If the CHECK TRANS
light does not illuminate during start up, or if the light remains on after start up, the system should be
checked immediately. Continued illumination of the CHECK TRANS light during vehicle operation
(other than start up) indicates that the TCM has signaled a diagnostic code.
To Next Page
Loading...
