Inspection Procedure B-5: Neutral switch signal is not received.

caution

Before replacing the ECU, ensure that the input and output signal circuits are normal.

COMMENTS ON TROUBLE SYMPTOM

PROBABLE CAUSES

Damaged tailgate latch
Damaged electric tailgate control unit
Damaged wiring harness and connectors

DIAGNOSIS PROCEDURE

STEP 1. Neutral switch inspection

Q. Is the check result normal?

STEP 2. Resistance measurement at tailgate latch connector (neutral switch earth line terminal).

(1)Disconnect the connector, and measure at the wiring harness side.

(2)Measure the resistance between tailgate latch connector (neutral switch earth line terminal) and body earth.
OK: Continuity exists (2 Ω or less).

Q. Is the check result normal?

STEP 3. Check of open circuit in earth line between tailgate latch connector (neutral switch terminal) and body earth.

Q. Is the check result normal?

STEP 4. Check of open circuit in NTL line between electric tailgate control unit connector and tailgate latch connector.

Q. Is the check result normal?

STEP 5. System retest

Q. Is the check result normal?

STEP 6. After the replacement of tailgate latch, recheck the trouble symptom.

(1)Replace the tailgate latch.

(2)Check that the neutral switch signal is received normally.