P0845

Test 1-4:

Test 5-7:

Test 8-11:

Test 12-15:

Test 16-18:

SYMPTOM
P0845-2C HYDRAULIC PRESSURE TEST FAILURE

WHEN MONITORED
In any forward gear with engine speed above 1000 RPM shortly after a shift and every minute thereafter.

SET CONDITION
After a shift into a forward gear, with engine speed above 1000 RPM, the TCM momentarily turns on element pressure to the Clutch circuits that don't have pressure to identify the correct Pressure Switch closes. If the Pressure Switch does not close 2 times, the DTC sets.

POSSIBLE CAUSES
- RELATED LINE PRESSURE DTC'S PRESENT
- TRANSMISSION SOLENOID/TRS ASSEMBLY
- 2C PRESSURE SWITCH SENSE CIRCUIT OPEN
- 5-VOLT SUPPLY CIRCUIT OPEN
- POOR LINE PRESSURE SENSOR CONNECTION
- TRANSMISSION CONTROL RELAY OUTPUT CIRCUIT OPEN
- 2C PRESSURE SWITCH SENSE CIRCUIT SHORT TO GROUND
- 5-VOLT SUPPLY CIRCUIT SHORT TO GROUND
- 2C PRESSURE SWITCH SENSE CIRCUIT SHORT TO VOLTAGE
- EXCESSIVE DEBRIS IN OIL PAN
- LINE PRESSURE SENSOR
- INTERNAL TRANSMISSION
- TRANSMISSION CONTROL MODULE
- INTERMITTENT WIRING AND CONNECTORS