RDX AWD L4-2.3L Turbo (2010)
Ignition Timing: Testing and Inspection
Ignition Timing Inspection
1. Connect the HDS to the DLC See: Powertrain Management/Computers and Control Systems/Testing and Inspection/Initial Inspection and
Diagnostic Overview.
2. Turn the ignition switch to ON (II).
3. Make sure the HDS communicates with the vehicle and the PCM. If it does not communicate, troubleshoot the DLC circuit See: Powertrain
Management/Computers and Control Systems/Testing and Inspection/Component Tests and General Diagnostics/DLC Circuit Troubleshooting.
4. Check for DTCs See: Powertrain Management/Computers and Control Systems/Testing and Inspection/Initial Inspection and Diagnostic
Overview. If a DTC is present, diagnose, and repair the cause before continuing with this test.
5. Start the engine. Hold the engine speed at 3,000 rpm with no load (in P or N) until the radiator fan comes on, then let it idle.
6. Check the idle speed See: Idle Speed/Testing and Inspection.
7. Jump the SCS line with the HDS.
8. Connect the timing light to the service loop (white tape) (A).
9. Aim the light toward the pointer (A) on the cam chain case. Check the ignition timing under a no load condition (headlights, blower fan, rear
window defogger, and air conditioner are turned off).
