1, 2 and 3 Digit Codes: 48

CODE NUMBER
Scan tool: 48
General scan tool: P1793

CODE NAME
TRD link communication error

CODE DESCRIPTION
The code sets when:
There is an incorrect response from the power train control module via the CCD bus acknowledging request for torque management test during idle.

or when:

Event dependent on two sequential requests for torque managed shift without correct response from powertrain control module on CCD bus acknowledging that torque management is in process.

PROBABLE CAUSE
- CCD bus communication problem
- Sticky throttle position sensor
- Open circuit or short-circuit in TRD link line between TCM and PCM


DIAGNOSTIC CHART