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Home >> Cadillac >> 2007 >> STS Base, 4.6 A, AWD >> Repair and Diagnosis >> Body & Frame >> Ignition Switch/Steering Lock >> Immobilizer System >> Diagnostic Information and Procedures >> DTC P1632 >> Test Description

Test Description

The numbers below refer to the step numbers on the diagnostic table.

  1. 3:  To set this code, the password that the ECM has learned does not agree with the password being received from the RCDLR or the ECM did not received the password from the RCDLR. This condition can occur if the RCDLR has been replaced and the Programming Theft Deterrent System Components procedure has not been performed.
  2. 5:  If the ECM resets the DTC after the programming theft deterrent system components procedure has been performed, the RCDLR is malfunctioning.
DTC P1632

Step Action Yes No
Schematic Reference:  Theft Deterrent System Schematics 
Connector End View Reference:  Theft Deterrent System Connector End Views 
1 Did you perform the Diagnostic System Check - Vehicle? Go to Step 2  Go to Diagnostic System Check - Vehicle
2 Perform the Programming Theft Deterrent System Components procedure. Refer to Programming Theft Deterrent System Components (Domestic, Canada, and Japan) or Programming Theft Deterrent System Components (Export) .
Is the procedure complete?
Go to Step 3  -
3 
  1. Use the scan tool in order to clear the DTCs.
  2. Operate the vehicle within the Conditions for Running the DTC as specified in the supporting text.
Does the DTC reset?
Go to Step 4  System OK
4 Replace the remote control door lock receiver (RCDLR). Refer to Control Module References for replacement, setup and programming.
Did you complete the replacement?
Go to Step 5  -
5 
  1. Use the scan tool in order to clear the DTCs.
  2. Operate the vehicle within the Conditions for Running the DTC as specified in the supporting text.
Does the DTC reset?
Go to Step 2  System OK