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TROUBLE DIAGNOSIS FOR SYMPTOMS TF-121 [ATX14B] C E F G H I J K L M A B TF 2007 Pathfinder 4WD Warning Lamp Does Not Turn ON EDS00373 SYMPTOM: 4WD warning lamp does not turn ON when turning ignition switch to “ON”. DIAGNOSTIC PROCEDURE 1. CHECK TRANSFER CONTROL UNIT POWER SUPPLY CIRCUIT 1. Turn ignition switch “OFF”. (Stay for at least 5 seconds.) 2. Connect transfer control unit harness connector. 3. Check voltage between transfer control unit harness connector 4. Turn ignition switch “ON”. (Do not start engine.) 5. Check voltage between transfer control unit harness connector OK or NG OK >> GO TO 2. NG >> Check the following. If any items are damaged, repair or replace damaged parts. ● 10A fuses [No. 21 located in fuse block (J/B) and No. 59 located in the fuse and relay box]. PG-4, "POWER SUPPLY ROUTING CIRCUIT" ● Harness for short or open between battery and transfer control unit harness connector M153 ● Harness for short or open between ignition switch and transfer control unit harness connector ● Harness for short or open between battery and transfer shut off relay harness connector E155 ● Harness for short or open between transfer shut off relay harness connector E155 terminal 2 ● Harness for short or open between transfer shut off relay harness connector E155 terminal 5 ● Battery and ignition switch. Refer to PG-4, "POWER SUPPLY ROUTING CIRCUIT" . ● Transfer shut off relay. Refer to . Connector Terminal Voltage (Approx.) M152 16 - Ground 0V 22 - Ground M153 29 - Ground 30 - Ground Battery voltage 47 - Ground WDIA0165E Connector Terminal Voltage (Approx.) M152 16 - Ground Battery voltage 22 - Ground M153 29 - Ground 30 - Ground 0V 47 - Ground Battery voltage WDIA0166E |