Trooper (2 Door) V6-3165cc 3.2L DOHC (6VD1) (1992)
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CHECK TRANS Indicator: Testing and Inspection
CIRCUIT DESCRIPTION
The "CHECK TRANS" indicator is lit at the beginning of every ignition cycle for 2 to 4 seconds while the TCM performs a self-test of the circuit
and components. When the TCM detects an electrical failure in the system (ignition switch on), TCM will turn the "CHECK TRANS" indicator on
and store a trouble code in its memory. Note that most electrical failures will cause the TCM to enter the backup mode.
The TCM also uses the "CHECK TRANS" indicator to display trouble codes by flashing the indicator. When the Tech-1 is connected to the TCM
diagnostic system, the "CHECK TRANS" indicator flashes continuously.
NOTE: This test assumes the following:
- Either "CHECK TRANS" indicator is on at all times (ignition is on) and no trouble codes are stored, or
- "CHECK TRANS" indicator does not light and the Tech-1 is able to receive data from the TCM.
NOTE: For all 1990-93 models:
- In addition to its diagnosis-related function, the "CHECK TRANS" indicator will be constantly on (not flashing) if the transmission oil
temperature is above 293°F (145°C).
- The "CHECK TRANS" indicator will go oft again when the transmission oil temperature is below 257°F (125°C).
CIRCUIT DIAGRAM
"CHECK TRANS" Circuit Diagram
"CHECK TRANS" INDICATOR TEST CHART
