Test B: The Interior Lamps Do Not Turn on With One Door Open

PINPOINT TEST B: THE INTERIOR LAMPS DO NOT TURN ON WITH ONE DOOR OPEN

B1-B2:

B3-B5:

B5-B7:

B7-B10:

B10-B12:

B12-B13:

B14-B17:

B17-B19:

B19-B22:

B22-B24:

B24-B26:

B26-B30:

B30-B33:

B33-B36:

B36-B38:

B38-B39:

Normal Operation
The interior lighting feature provides interior lighting whenever a door is ajar. The interior lamps are controlled through the FEM. The FEM provides the ground circuit for the front dome/map lamps, rear grab handle lamps, RH and LH footwell lamps and the RH and LH puddle lamps through common circuit 31S-LC3 (BK/BU). Power for the interior lamps is supplied through common circuit 29S-LB2 (OG/BU) from switched system power (SSP) relay 3. The LH and RH dome/map lamps and LH and RH grab handle lamps share a common power supply splice from circuit 29S-LB2 (OG/BU) and a common ground circuit splice to circuit 9-LB1 (BN/RD). The LH and RH puddle lamps and LH and RH footwell lamps are supplied power from circuit 29S-LB2 (OG/BU) through the central junction box (CJB). All interior lamp ground circuits connect at the auxiliary junction box and combine into one common ground circuit 29S-LC3 (BK/OG).

Possible Causes
- Individual interior lamp
- LH map lamp switch
- RH map lamp switch
- LH rear grab handle lamp assembly
- RH rear grab handle lamp assembly
- LH instrument panel junction block
- RH instrument panel junction block
- Auxiliary junction box
- Central junction box (CJB)
- FEM
- Circuit 29S-LC34 (OG/YE) open
- Circuit 9-LC34 (BN) open
- Circuit 29S-LC36 (OG/YE) open
- Circuit 9-LC36 (BN) open
- Circuit 9-LB13 (BN/RD) open
- Circuit 29S-LB12 (OG/YE) open
- Circuit 31S-LB12 (BK/YE) open
- Circuit 9-LB20 (BN/BU) open
- Circuit 29S-LB19 (OG/BU) open
- Circuit 31S-LB19 (BK/BU) open
- Circuit 29S-LB14 (OG) open
- Circuit 9-LB14 (BN/BU) open
- Circuit 29S-LB21 (OG/BK) open
- Circuit 9-LB21 (BN/GN) open
- Circuit 29S-LC11 (OG/WH) open
- Circuit 31S-LC11 (BK/WH) open
- Circuit 29S-LC23 (OG/WH) open
- Circuit 31S-LC23 (BK/WH) open
- Circuit 31S-LC4 (BK/GN) open
- Circuit 29S-LC1 (OG/YE) open
- Circuit 29S-LC5 (OG/GN) open
- Circuit 9-LB1 (BN) open
- Circuit 31-DK20 (BK/RD) open