LEMON Manuals: Even more car manuals for everyone
Home >> Chrysler >> 2002 >> PT Cruiser Base, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 1 (Body Control Modules) >> System Tests >> Interior Lighting System >> Courtesy/Dome Lights Inoperative From All Doors & Headlight Switch

Courtesy/Dome Lights Inoperative From All Doors & Headlight Switch

WARNING: This page is about a different car, the 2002 Dodge Ram Wagon, 2002 Dodge Ram Van, 2001 Dodge Ram Wagon, and 2001 Dodge Ram Van. However, it is still accessible from the selected car via links, so may be relevant.

Possible Causes:

  1. Fuse Open Test
  2. Courtesy Lamp Switch Output Circuit Open
  3. All Courtesy/Dome Lamp Bulbs Open
  4. Fused B+ Circuit Open
  5. Courtesy Lamp Driver Circuit Open To Lamps
  6. CTM Courtesy Lamp Driver Circuit Open

Testing

  1. Turn ignition off. Remove and inspect fuse No. 1 (15-amp) from fuse/relay block. Fuses are identified on fuse/relay block cover. If fuse is okay, reinstall fuse and go to next step. If fuse is open, check for short to ground in Yellow wire circuit.
  2. Disconnect front courtesy/dome light harness connector (2-pin on Ram Van; 3-pin on Ram Wagon). Disconnect headlight switch harness connectors. Using a DVOM, measure resistance of Yellow wire between headlight switch harness connector terminal "D" and front courtesy/dome light harness connector terminal No. 1. If resistance is less than 5 ohms, go to next step. If resistance is 5 ohms or more, repair open in Yellow wire.
  3. Remove and inspect inoperative bulbs. Replace bulbs as necessary. If bulbs are okay, use DVOM to measure voltage across fuse No. 1 connector in fuse/relay block. If battery voltage is present, go to next step. If battery voltage is not present, repair open between Power Distribution Center (PDC) and fuse No. 1 in fuse/relay block.
  4. Install fuse No. 1. Turn ignition on. Connect a fused jumper wire between ground and headlight switch harness connector terminal "D" (Yellow wire). If courtesy/dome lights illuminate, remove jumper wire and go to next step. If courtesy/dome lights do not illuminate, repair open in Yellow wire.
  5. Using a fused jumper wire, backprobe between ground and White 18-pin Central Timer Module (CTM) harness connector C2 terminal No. 2 (Yellow wire). See Figure . If courtesy/dome lights do not illuminate, go to next step. If courtesy/dome lights illuminate, replace CTM. See CENTRAL TIMER MODULE  under REMOVAL & INSTALLATION.
  6. Problem is intermittent. Check for open or loose connection in Yellow wire circuit.
scientia non olet · About LEMON Manuals