Description
When the selector lever position is P or N, park/neutral position (PNP) signal from the TCM is sent to ECM (CVT models).
When the selector lever position is Neutral position, park/neutral position (PNP) switch is ON. ECM detects the position because the continuity of the line (the ON signal) exists (M/T models).
DTC Logic
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE 1.Inspection START
Will CONSULT-III be used?
Will CONSULT-III be used?
YES >> GO TO 2.
NO >> GO TO 5. 2.PRECONDITIONING
If DTC Confirmation Procedure has been previously conducted, always perform the following before conducting the next test.
Turn ignition switch OFF and wait at least 10 seconds.
Turn ignition switch ON.
Turn ignition switch OFF and wait at least 10 seconds. >> GO TO 3.
3.CHECK PNP SIGNAL With CONSULT-III
Turn ignition switch ON.
Select "P/N POSI SW" in "DATA MONITOR" mode with CONSULT-III. Then check the "P/N POSI SW" signal under the following conditions.
Is the Inspection result normal?
YES >> GO TO 4.
NO >> Go to Diagnosis Procedure. 4.PERFORM DTC CONFIRMATION PROCEDURE
Select "DATA MONITOR" mode with CONSULT-III.
Start engine and warm it up to normal operating temperature.
Maintain the following conditions for at least 50 consecutive seconds.
CAUTION: Always drive vehicle at a safe speed.
Check 1st trip DTC. Is 1st trip DTC detected?
YES >> Go to Diagnosis Procedure.
NO >> Inspection END 5.PERFORM COMPONENT FUNCTION CHECK
Perform component function check. Refer to Component Function Check.
NOTE:
Use component function check to check the overall function of the park/neutral position (PNP) signal circuit.
During this check, a 1st trip DTC might not be confirmed.
Is the Inspection result normal?
YES >> Inspection END
NO >> Go to Diagnosis Procedure.
Component Function Check 1.PERFORM COMPONENT FUNCTION CHECK
Turn ignition switch ON.
Check the voltage between ECM harness connectors.
Is the Inspection result normal?
YES >> Inspection END
NO >> Go to Diagnosis Procedure.
Diagnosis Procedure 1.Inspection START
Check the transmission type of the vehicle.
Which type of transmission is the vehicle equipped?
CVT >> GO TO 2.
M/T >> GO TO 5. 2.CHECK DTC WITH TCM
Refer to See: Testing and Inspection.
Is the Inspection result normal?
YES >> GO TO 3.
NO >> Repair or replace malfunctioning part. 3.CHECK PNP SIGNAL CIRCUIT FOR OPEN AND SHORT-I
Turn ignition switch OFF.
Disconnect TCM harness connector.
Disconnect IPDM E/R harness connector.
Check the continuity between TCM harness connector and IPDM E/R harness connector.
Also check harness for short to ground and short to power. Is the Inspection result normal?
YES >> GO TO 4.
NO >> Repair open circuit, short to ground or short to power in harness or connectors. 4.CHECK PNP SIGNAL CIRCUIT FOR OPEN AND SHORT-II
Disconnect IPDM E/R harness connectors.
Disconnect ECM harness connector.
Check the continuity between ECM harness connector and IPDM E/R harness connector.
Also check harness for short to ground and short to power. Is the Inspection result normal?
YES >> GO TO 10.
NO >> Repair open circuit, short to ground or short to power in harness or connectors. 5.CHECK PNP SWITCH POWER SUPPLY CIRCUIT
Turn ignition switch OFF.
Disconnect park/neutral position (PNP) switch harness connector.
Turn ignition switch ON.
Check the voltage between PNP switch harness connector and ground.
Is the Inspection result normal?
YES >> GO TO 7.
NO >> GO TO 6. 6.DETECT MALFUNCTIONING PART
Check the following.
10 A fuse (No. 33)
IPDM E/R harness connector F10
Harness for open or short between PNP switch and IPDM E/R >> Repair open circuit, short to ground or short to power in harness or connectors.
7.CHECK PNP SIGNAL CIRCUIT FOR OPEN AND SHORT
Turn ignition switch OFF.
Disconnect ECM harness connector.
Check the continuity between PNP switch harness connector and ECM harness connector.
Also check harness for short to ground and short to power. Is the Inspection result normal?
YES >> GO TO 9.
NO >> GO TO 8. 8.DETECT MALFUNCTIONING PART
Check the following.
Harness connectors E3, F1
Harness for open or short between PNP switch and ECM >> Repair or replace harness or connectors.
