Circuit/System Testing

Ignition OFF, disconnect the X1 electrical connector at the K84 Keyless Entry Control Module.
Connect a 3 A fused jumper between the control circuit terminal 10 and B+.
Verify a test lamp illuminates between Fuse F20DA and ground.
- If the test lamp does not illuminate and the 3 A fuse is OK
1. Ignition OFF, remove the fused jumper wire, disconnect the electrical connector at the X51A Fuse Block - Instrument Panel.
2. Test for less than 10 Ω between the ground circuit terminal 23AA and ground.
  - If 10 Ω or greater, repair the open/high resistance on the circuit or ground connection
  - Go to next step: If less than 10 Ω
3. Test for less than 2 Ω in the control circuit end to end.
  - If 2 Ω or greater, repair the open/high resistance in the circuit.
  - Go to next step: If less than 2 Ω.
4. Replace the X51A Fuse Block - Instrument Panel.
- If the test lamp does not illuminate and the 3 A fuse is open
1. Ignition OFF, remove the fused jumper wire, disconnect the electrical connector at the X51A Fuse Block - Instrument Panel.
2. Test for infinite resistance between the control circuit terminal 10 at the K84 Keyless Entry Control Module and ground.
  - If less than infinite resistance, repair the short to ground on the circuit.
  - Go to next step: If infinite resistance
3. Replace the X51A Fuse Block - Instrument Panel.
- Go to next step: If the test lamp illuminates
Ignition OFF, remove the fused jumper wire
Ignition ON, verify the test lamp does not illuminate between Fuse F20DA and ground
- If the test lamp illuminates
1. Disconnect the electrical connector at the X51A Fuse Block - Instrument Panel.
2. Test for less than 1 V between control circuit terminal 10 at the K84 Keyless Entry Control Module and ground.
  - If 1 V or greater, repair the short to voltage on the circuit.
  - Go to next step: If less than 1 V.
3. replace the X51A Fuse Block - Instrument Panel.
- Go to next step: If the test lamp does not illuminate
Replace the K84 Keyless Entry Control Module.