Circuit/System Testing
WARNING: This page is about a different variant/trim than selected.
NOTE:
Do NOT perform this procedure unless directed here from the following diagnostic:
- Ignition/Vehicle & All vehicle systems - Off
- Disconnect the appropriate electrical connector:T8 Ignition Coil
- Test for less than 10 Ω between the test points: Ground circuit terminal 1/A & Ground
- If 10 Ω or greater
- Disconnect the ground connection:Ground terminal
- Test for less than 2 Ω between the test points: Ground circuit terminal 1/A @ Component harness & The other end of the circuit
- If 2 Ω or greater - Repair the open/high resistance in the circuit.
- If less than 2 Ω - Repair the open/high resistance in the ground connection.
- Go to next step: If less than 10 Ω
- Test for less than 10 Ω between the test points: Low Reference circuit terminal 2/B & Ground
- If 10 Ω or greater
- Disconnect the electrical connector:K20 Engine Control Module
- Test for less than 2 Ω between the test points: Low Reference circuit terminal 2/B @ Component harness & The other end of the circuit
- If 2 Ω or greater - Repair the open/high resistance in the circuit.
- If less than 2 Ω - Replace the component:K20 Engine Control Module
- Go to next step: If less than 10 Ω
- Ignition - On / Vehicle - In Service Mode
- Verify a test lamp turns On between the test points:Ignition circuit terminal 4/D & Ground
- If the test lamp does not turn On
- Ignition/Vehicle - Off & Remove - Test lamp
- Test for less than 2 Ω between the test points: Ignition circuit terminal 4/D @ Component harness & Output terminal @ Fuse
- If 2 Ω or greater - Repair the open/high resistance in the circuit.
- If less than 2 Ω - Verify the fuse is OK and there is voltage at the fuse.
- Go to next step: If the test lamp turns On
- Test or replace the component:T8 Ignition Coil
NOTE:
It may take up to 2 min for all vehicle systems to power down before an accurate ground or low reference circuit continuity test can be performed.