Diagnostic Trouble Code 33

Pin 7 Not Grounded

Normal Operation

Pin 7 of the diagnostic monitor should be connected to ground. Connecting Pin 7 to ground programs the diagnostic monitor to ignore high resistance on the passenger side air bag circuits. If Pin 7 is not grounded, the diagnostic monitor will flash Diagnostic Trouble Code 33 on the air bag indicator.

Possible Causes

A high resistance or open in the passenger side air bag circuit can be caused by:

1. Pin 7 not connected to ground. The wire in pin location 7 in the Black diagnostic monitor harness connector should be connected to ground.

DIAGNOSTIC TROUBLE CODE 33

33-1 VERIFY CONDITION

• Turn key to ON.

• Count diagnostic trouble code.

• Is code 33 flashing?

GO to 33-2.

No
Read the normal operation description for this diagnostic trouble code. EXAMINE the diagnostic trouble code schematic and look for areas where intermittent conditions would occur (connectors, splices, crimps, etc.).
DO NOT proceed with Pinpoint Test until the code is flashing!
Failure to do so will result in needless replacement of the air bag system components and repeat service.

 

33-2 ISOLATE CONCERN

• Deactivate system.

• Disconnect diagnostic monitor.

• Disconnect battery cables.

• Measure resistance between diagnostic monitor harness Pin 7 (57 BK) and Pin 3 (ground).

• Is resistance less than 10 ohms? (Is Pin 7 grounded?)

Yes
REPLACE diagnostic monitor. RECONNECT system. VERIFY air bag indicator. REACTIVATE system.

No
LOCATE and CONNECT wire in Pin 7 to ground.

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