Part 3
AA80E AUTOMATIC TRANSMISSION / TRANSAXLE: AUTOMATIC TRANSMISSION SYSTEM: P0872: Transmission Fluid Pressure Sensor / Switch "C" Circuit Low
P0872 - Transmission Fluid Pressure Sensor / Switch "C" Circuit Low (Continued)
Condition (2)
OFF malfunction (D)
- When either condition below is met: Condition (1) or (2)
Condition (1)
Condition (2)
OFF malfunction (E)
- When either condition below is met: Condition (1) or (2)
Condition (1)
Condition (2)
OFF malfunction (F)
- When either condition below is met: Condition (1) or (2)
Condition (1)
Condition (2)
WIRING DIAGRAM
INSPECTION PROCEDURE
NOTICE:
Perform the universal trip to clear permanent DTCs Reading and Clearing Diagnostic Trouble Codes.
PROCEDURE
1. READ VALUE USING TECHSTREAM (TPS 1 SW SIGNAL)
(a) Connect terminals TPS1 and E1 of the TCM connectors.
HINT
Before checking, perform visual and contact pressure checks on the TCM connectors.
(b) Connect the Techstream to the DLC3.
(c) Turn the engine switch on (IG).
(d) Turn the Techstream on.
(e) Enter the following menus: Powertrain / ECT / Data List.
(f) Read the value displayed on the Techstream.
Standard:
NG -- CHECK HARNESS AND CONNECTOR (TRANSMISSION WIRE - TCM)
OK -- Continue to next step.
2. REPLACE TCM
(a) Replace the TCM Removal.
NEXT -- PERFORM A/T CODE REGISTRATION Registration
3. CHECK HARNESS AND CONNECTOR (TRANSMISSION WIRE - TCM)
(a) Disconnect the transmission wire connector.
(b) Disconnect the TCM connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.
4. INSPECT TRANSMISSION WIRE (OIL PRESSURE SWITCH)
(a) Disconnect the oil pressure switch connector Removal.
(b) Disconnect the transmission wire connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
NG -- REPAIR OR REPLACE TRANSMISSION WIRE Removal
OK -- REPLACE OIL PRESSURE SWITCH Disassembly