P0845
P0845 TRANSMISSION FLUID PRESSURE SEN/SW BDescription
The primary pressure sensor detects primary pressure of CVT and sends TCM the signal.
DTC Logic
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
NOTE:
If "DTC CONFIRMATION PROCEDURE" has been previously performed, always turn ignition switch OFF.
Then wait at least 10 seconds before performing the next test.
1.CHECK DTC DETECTION
With CONSULT-III
1. Turn ignition switch ON.
2. Select "DATA MONITOR".
3. Make sure that output voltage of line temperature sensor is within the range below.
4. Start engine and wait for at least 5 consecutive seconds.
With GST
Follow the procedure "With CONSULT-III".
Is "P0845" detected?
YES - Go to P0845.
NO - Check intermittent incident. Refer to Intermittent Incident.
Diagnosis Procedure
1.CHECK INPUT SIGNAL
1. Start engine.
2. Check voltage between TCM harness connector F16 terminal
14 and ground.
3. Turn ignition switch OFF.
Is the inspection result normal?
YES - GO TO 8.
NO - GO TO 2.
2.CHECK SENSOR POWER AND SENSOR GROUND
1. Turn ignition switch ON.
2. Check voltage between TCM harness connector F16 terminal
25 and 26.
Is the inspection result normal?
YES - GO TO 3.
NO - GO TO 5.
3.CHECK HARNESS BETWEEN TCM AND CVT UNIT (PRIMARY PRESSURE SENSOR) (PART 1)
1. Turn ignition switch OFF.
2. Disconnect TCM harness connector and CVT unit harness connector.
3. Check continuity between TCM harness connector F16 (A) terminal 14 and CVT unit harness connector F46 (B) terminal 25.
Is the inspection result normal?
YES - GO TO 4.
NO - Repair or replace damaged parts.
4.CHECK HARNESS BETWEEN TCM AND CVT UNIT (PRIMARY PRESSURE SENSOR) (PART 2)
Check continuity between TCM harness connector F16 terminal 14 and ground.
Is the inspection result normal?
YES - GO TO 7.
NO - Repair or replace damaged parts.
5.CHECK HARNESS BETWEEN TCM AND CVT UNIT (SENSOR POWER AND SENSOR GROUND) (PART
1)
1. Turn ignition switch OFF.
2. Disconnect TCM harness connector and CVT unit harness connector.
3. Check continuity between TCM harness connector F16 (A) terminal 25, 26 and CVT unit harness connector F46 (B) terminal
19, 20.
Is the inspection result normal?
YES - GO TO 6.
NO - Repair or replace damaged parts.
6.CHECK HARNESS BETWEEN TCM AND CVT UNIT (SENSOR POWER AND SENSOR GROUND) (PART
2)
Check continuity between TCM harness connector F16 terminal 25, 26 and ground.
Is the inspection result normal?
YES - GO TO 7.
NO - Repair or replace damaged parts.
7.CHECK TCM
1. Replace same type TCM. Refer to Exploded View.
2. Connect each connector.
3. Perform "DTC CONFIRMATION PROCEDURE". Refer to P0845.
Is "P0840" detected?
YES - Replace transaxle assembly. Refer to Exploded View.
NO - Replace TCM. Refer to Exploded View.
8.DETECT MALFUNCTIONING ITEMS
Check TCM connector pin terminals for damage or loose connection with harness connector.
Is the inspection result normal?
YES - Replace TCM. Refer to Exploded View.
NO - Repair or replace damaged parts.