Diagnostic Procedure

CAUTION: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector.

DIAGNOSIS PROCEDURE

PINPOINT TEST 8	THE TRANSMISSION CONTROL MODULE (TCM) DOES NOT RESPOND TO THE SCAN TOOL - HYBRID
STEP	INSPECTION	ACTION
1	CHECK THE POWER TO THE TCM Key in OFF position. Disconnect: TCM 140-1458a. Key in ON position. Measure the voltage between the TCM 140-1458a, harness side and ground: pin 4 (G/BR) pin 5 (G/BR) pin 12 (V/R) Are the voltages greater than 10 volts?	Yes	GO to the next step.
1		No	VERIFY the battery junction box (BJB) fuse 27 (10A) or fuse 8 (5A) is OK. If OK, REPAIR the circuit in question. CLEAR the DTCs. REPEAT the network test with the scan tool.
2	CHECK THE TCM GROUNDS Key in OFF position. Measure the resistance between the TCM 140-1458a, harness side and ground: pin 2 (B/Y) pin 8 (B/Y) Are the resistances less than 5 ohms?	Yes	GO to the next step.
2		No	REPAIR the circuit in question. CLEAR the DTCs. REPEAT the network test with the scan tool.
3	CHECK THE HS-CAN CIRCUITS BETWEEN THE TCM AND THE DATA LINK CONNECTOR (DLC) FOR AN OPEN Measure the resistance between the TCM 140-1458a pin 1, circuit (W/L), harness side and the DLC D-01 pin 6, circuit (W/L), harness side; and between the TCM 140-1458a pin 7, circuit (W), harness side and the DLC D-01 pin 14, circuit (W), harness side. Are the resistances less than 5 ohms?	Yes	GO to next step.
3		No	REPAIR the circuit in question. CLEAR the DTCs. REPEAT the network test with the scan tool.
4	CHECK FOR CORRECT TCM OPERATION Disconnect the TCM connector. Check for: corrosion damaged pins pushed-out pins Connect the TCM connector and make sure it seats correctly. Operate the system and verify the concern is still present. Are the resistances less than 5 ohms?	Yes	INSTALL a new TCM. CLEAR the DTCs. REPEAT the network test with the scan tool.
4		No	The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. CLEAR the DTCs. REPEAT the network test with the scan tool.