Super Locking Control Circuit Input Test

1.	Remove the gauge assembly.

2.	Disconnect the gauge assembly connectors.

3.	Inspect the connector and socket terminals to be sure they are all making good contact. If the terminals are bent, loose or corroded, repair them as necessary, and recheck the system. If the terminals look OK, go to 4.

4.

With the connectors still disconnected, make these input tests at the connectors. If any test indicates a problem, find and correct the cause, then recheck the system. If all the input tests prove OK, go to 5. Cavity  Wire  Test condition  Test: Desired result  Possible cause if result is not obtained  A1  WHT/RED  Under all conditions  Check for voltage to ground: There should be battery voltage.  Blown No. 8 (15 A) fuse in the under-hood fuse/relay box An open in the wire   A2  YEL  Ignition switch ON (II)  Check for voltage to ground: There should be battery voltage.  Blown No. 16 (7.5 A) fuse in the under-dash fuse/relay box An open in the wire   A9  BLK  Under all conditions  Check for continuity to ground: There should be continuity.  Poor ground (G401) An open in the wire   A19

5.

Reconnect the connectors, and make these input tests at the connector. If any test indicates a problem, find and correct the cause, then recheck the system. If all input test prove OK, the gauge assembly must be faulty; replace it. Cavity  Wire  Test condition  Test: Desired result  Possible cause if result is not obtained  A16  GRN/RED  Tailgate open  Check for voltage to ground: There should be 1 V or less.  Poor ground (G502) Faulty tailgate latch switch An open in the wire   Tailgate closed  Check for voltage to ground: There should be 5 V or more.  C5  BLU/RED  Ignition key inserted into the ignition switch  Check for voltage to ground: There should be 1 V or less.  Poor ground (G401) Faulty ignition key switch An open in the wire   Ignition key removed from the ignition switch  Check for voltage to ground: There should be 5 V or more.  A14  GRN  Driver's door open  Check for voltage to ground: There should be 1 V or less.  Faulty driver's door switch An open in the wire   Driver's door closed  Check for voltage to ground: There should be 5 V or more.  A13  LT GRN/RED  Front passenger's door open  Check for voltage to ground: There should be 1 V or less.  Faulty front passenger's door switch An open in the wire   Front passenger's door closed  Check for voltage to ground: There should be 5 V or more.  Left rear door open  Check for voltage to ground: There should be 1 V or less.  Faulty left rear door switch An open in the wire   Left rear door closed  Check for voltage to ground: There should be 5 V or more.  Right rear door open  Check for voltage to ground: There should be 1 V or less.  Faulty right rear door switch An open in the wire   Right rear door closed  Check for voltage to ground: There should be 5 V or more.  C1  YEL/RED  Driver's door lock knob switch locked  Check for voltage to ground: There should be 1 V or less.  Poor ground (G501) Faulty driver's door lock knob switch An open in the wire   C2  WHT/BLK  Driver's door lock knob switch unlocked  Check for voltage to ground: There should be 1 V or less.  Poor ground (G401) Faulty driver's door lock knob switch An open in the wire   C4  WHT/BLU  Driver's door lock switch unlocked  Check for voltage to ground: There should be 1 V or less.  Poor ground (G401) Faulty driver's door lock switch An open in the wire   Driver's door lock switch in neutral  Check for voltage to ground: There should be 5 V or more.  Faulty driver's door lock switch Short to ground   C3  WHT/GRN  Driver's door lock switch locked  Check for voltage to ground: There should be 1 V or less.  Poor ground (G401) Faulty driver's door lock switch An open in the wire   Driver's door lock switch in neutral  Check for voltage to ground: There should be 5 V or more.  Faulty driver's door lock switch Short to ground   Cavity  Wire  Test condition  Test: Desired result  Possible cause if result is not obtained  C12  BLU/ORN  Under all conditions  Check for continuity between the C12 terminal and the keyless receiver unit 5P connector No. 2 terminal with the 5P connector disconnected: There should be continuity.  An open in the wire   C14  GRN  Under all conditions  Check for continuity between the C14 terminal and ground: There should be continuity.  Poor ground (G401) Faulty power door lock relay An open in the wire   C30  LT GRN/RED  Under all conditions  Check for continuity between the C30 terminal and ground: There should be continuity.  Poor ground (G401) Faulty power door unlock relay An open in the wire   D5  GRN  Under all conditions  Check for continuity between the D5 terminal and ground: There should be continuity.  Poor ground (G402) Faulty right super locking relay An open in the wire   D6  GRN/RED  Under all conditions  Check for continuity between the D6 terminal and ground: There should be continuity.  Poor ground (G402) Faulty left super locking relay An open in the wire   D9  BLU/WHT  Tailgate key cylinder locked  Check for voltage to ground: There should be 1 V or less.  Poor ground (G502) Faulty tailgate key cylinder switch An open in the wire   Tailgate key cylinder in neutral  Check for voltage to ground: There should be 5 V or more.  D10  WHT/BLU  Tailgate key cylinder unlocked  Check for voltage to ground: There should be 1 V or less.  Tailgate key cylinder in neutral  Check for voltage to ground: There should be 5 V or more.  D11  RED/WHT  Front passenger's door lock key cylinder locked  Check for voltage to ground: There should be 1 V or less.  Poor ground (B402) Faulty front passenger's key cylinder switch An open in the wire   Front passenger's door lock key cylinder neutral  Check for voltage to ground: There should be 5 V or more.  D12  RED  Front passenger's door lock key cylinder unlocked  Check for voltage to ground: There should be 1 V or less.  Front passenger's door lock key cylinder in neutral  Check for voltage to ground: There should be 5 V or more.  D13  WHT/RED  Driver's door lock key cylinder locked  Check for voltage to ground: There should be 1 V or less.  Poor ground (G401) Faulty driver's key cylinder switch An open in the wire   Driver's door lock key cylinder in neutral  Check for voltage to ground: There should be 5 V or more.  D14  WHT  Driver's door lock key cylinder unlocked  Check for voltage to ground: There should be 1 V or less.  Driver's door lock key cylinder in neutral  Check for voltage to ground: There should be 5 V or more.  D4  WHT/BLU  Front passenger's door lock knob unlocked  Check for voltage to ground: There should be 1 V or less.  Faulty front passenger's door lock knob switch Poor ground (G402) An open in the wire   Front passenger's door lock knob locked  Check for voltage to ground: There should be 5 V or more.  Left rear door lock knob unlocked  Check for voltage to ground: There should be 1 V or less.  Faulty left rear door lock knob switch Poor ground (G502) An open in the wire   Left rear door lock knob locked  Check for voltage to ground: There should be 5 V or more.  Right rear door lock knob unlocked  Check for voltage to ground: There should be 1 V or less.  Faulty right rear door lock knob switch Poor ground (G502) An open in the wire   Right rear door lock knob locked  Check for voltage to ground: There should be 5 V or more.