B1D4D–MEMORY SWITCH INPUT CIRCUIT STUCK – DDM | JEEP Commander 2007 DIY Repair Guide

B1D4D–MEMORY SWITCH INPUT CIRCUIT STUCK – DDM

For a complete wiring diagram Refer to Section 8W.

When Monitored:
Continuously
Set Condition:
If the Driver Door Module either receives a conflicting input from the (P439) Memory Select Switch Mux circuit or the (G160/G161) Right/Left Door Lock Switch Mux circuit or the module senses voltage is less than 0.2 volts on the (P439) Memory Select Switch Mux circuit or the (G160/G161) Right/Left Door Lock Switch Mux circuit.

Possible Causes

(G160) RIGHT DOOR LOCK SWITCH MUX CIRCUIT SHORTED TO GROUND (RHD)

(G161) LEFT DOOR LOCK SWITCH MUX CIRCUIT SHORTED TO GROUND (LHD)

(G160) RIGHT DOOR LOCK SWITCH MUX CIRCUIT SHORTED TO (Z911) GROUND CIRCUIT (RHD)

(G161) LEFT DOOR LOCK SWITCH MUX CIRCUIT SHORTED TO (Z911) GROUND CIRCUIT (LHD)

(G160) RIGHT DOOR LOCK SWITCH MUX CIRCUIT SHORTED TO THE (G776) RIGHT DOOR LOCK SWITCH RETURN CIRCUIT (RHD)

(G161) LEFT DOOR LOCK SWITCH MUX CIRCUIT SHORTED TO THE (G775) LEFT DOOR LOCK SWITCH RETURN CIRCUIT (LHD)

(P439) MEMORY SELECT SWITCH MUX CIRCUIT SHORTED TO GROUND

(P439) MEMORY SELECT SWITCH MUX CIRCUIT SHORTED TO THE (G920) MEMORY SELECT SWITCH RETURN CIRCUIT

DRIVER WINDOW/DOOR LOCK SWITCH

MEMORY SET SWITCH

DRIVER DOOR MODULE

1.TEST FOR INTERMITTENT CONDITION

Does the scan tool display: B1D4D MEMORY SWITCH INPUT CIRCUIT STUCK?

Yes

The conditions that caused this code to set are not present at this time. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors.
Perform BODY VERIFICATION TEST – VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - STANDARD PROCEDURE).

2.CHECK THE DRIVER WINDOW/DOOR LOCK SWITCH FOR A SHORT TO GROUND

Does the scan tool display: B1D4D MEMORY SWITCH INPUT CIRCUIT STUCK?

Yes

Replace the Driver Window/Door Lock Switch in accordance with the Service Information.
Perform BODY VERIFICATION TEST – VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - STANDARD PROCEDURE).

3.CHECK THE MEMORY SET SWITCH FOR A SHORT TO GROUND

Does the scan tool display: B1D4D MEMORY SWITCH INPUT CIRCUIT STUCK?

Yes

Replace the Memory Set Switch in accordance with the Service Information.
Perform BODY VERIFICATION TEST – VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - STANDARD PROCEDURE).

4.CHECK THE (G160/G161) RIGHT/LEFT DOOR LOCK SWITCH MUX CIRCUIT FOR A SHORT TO GROUND