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TCM E39 / P0971 00

Read the instructions below then start the fault diagnostic procedure.

Symptom: Message appears in display.

  P0971 00


Solenoid SLC2 Circuit, Short to B+

Fault symptom

Message appears in display.

On-board diagnosis

Type of diagnosis:

Continuous

Enable criteria:

Battery voltage must be between 10.2 - 15.5 V.
Engine speed over 400 rpm.
Selector lever in position D.
TCM not in Limp Home
DTC P0970 must not exist.

Fault criteria:

Power consumption has exceeded 1,358 A.
The fault criterion must be met for at least 100 ms 5 times.

System reaction to a fault:

Limp home

Checking the wiring harness

Move the wiring harness at several spots and in several directions to reveal intermittent breaks and short-circuits. Check switches, connectors and crimp connections for oxidation, retracted pins and pin clamping force.

Diagnostic help

Diagnosis regards:

Electrical fault in connecting leads or component.

Functions in the diagnostic tool related to the fault:

Test value:
SLC2 Commanded Pressure
SLC2 Commanded Current
SLC2 Actual Current
Activation:
SLC2 Commanded Current
(See also description of readings/activations in diagnostic tool)