Test F: No Key Code Received - Damaged Encoded Ignition Key Or Non-Passive Anti-Theft System Encoded Ignition Key

WARNING: This page is about a different car, the 2001 Ford Excursion and 2000 Ford Excursion. However, it is still accessible from the selected car via links, so may be relevant.

CAUTION: Ensure PATS encoded ignition key is an approved Ford encoded ignition key. Unapproved PATS ignition keys do not always operate properly over different temperature ranges.

NOTE: After any repairs, perform data link diagnostic test. See DATA LINK DIAGNOSTIC TEST under SELF-DIAGNOSTIC SYSTEM in MODULE COMMUNICATIONS NETWORK - EXCURSION & F250/F350 SUPER DUTY article.

NOTE: Large metallic objects, electronic debit transponder devices or another encoded key on same key ring as PATS ignition key, may cause vehicle starting problems and record DTCs under certain conditions. If a fault cannot be identified, check key ring for these items. These items should be kept from touching PATS ignition key while starting engine. These items will not damage PATS ignition key, but can cause a momentary problem if they are too close to PATS ignition key during engine start. If a problem occurs, turn ignition off and restart engine with all other items on key ring held away from PATS ignition key.

Turn ignition switch to LOCK position. Using scan tool, retrieve and record all Diagnostic Trouble Codes (DTC). Clear continuous DTCs. Perform PATS self-test, then retrieve PATS DTCs. If DTC B1600 is retrieved, go to next step. If DTC B1600 is not retrieved but other DTCs are retrieved, proceed to appropriate test(s). See PATS DIAGNOSTIC TROUBLE CODE INDEX table under SELF-DIAGNOSTIC SYSTEM. If no PATS DTCs are retrieved, PATS is okay.
Cut new encoded ignition key. Turn ignition switch to RUN position. Program new encoded ignition key. See KEY PROGRAMMING - WITH PROGRAMMED KEYS under PROGRAMMING. Using scan tool, perform PATS self-test, then retrieve PATS DTCs. If DTC B1600 is still present, go to next step. If DTC B1600 is not still present but other PATS DTCs are retrieved, proceed to appropriate test(s). See PATS DIAGNOSTIC TROUBLE CODE INDEX table under SELF-DIAGNOSTIC SYSTEM. If no PATS DTCs are retrieved, PATS is okay.

NOTE: Use customer's original encoded ignition key, not new encoded ignition key cut and programmed in step 2 .

Turn ignition switch to LOCK position. Replace PATS transceiver module. See PASSIVE ANTI-THEFT SYSTEM TRANSCEIVER MODULE under REMOVAL & INSTALLATION. Turn ignition key to RUN position. Perform PATS self-test, then retrieve PATS DTCs. If DTC B1600 is not retrieved, PATS is okay. If DTC B1600 is retrieved, install a new PATS control module. See PASSIVE ANTI-THEFT SYSTEM CONTROL MODULE under REMOVAL & INSTALLATION. Using 2 encoded ignition keys, turn ignition switch to RUN, then LOCK position. Go to TEST J: PCM ID DOES NOT MATCH BETWEEN PASSIVE ANTI-THEFT SYSTEM CONTROL MODULE & PCM .