Mazda 6 Workshop Manual page 106

Diagnostic procedure
STEP
1 VERIFY FREEZE FRAME DATA HAS BEEN
RECORDED
• Has FREEZE FRAME DATA been recorded?
2 VERIFY RELATED REPAIR INFORMATION
AVAILABILITY
• Verify related Service Information availability.
• Is any related repair information available?
3 VERIFY CURRENT SIGNAL STATUS: IS
CONCERN INTERMITTENT OR CONSTANT?
• Connect the WDS or equivalent to the DLC-2.
• Clear the DTC from the PCM memory using
the WDS or equivalent.
• Start the engine.
• Is the same DTC present?
4 IDENTIFY TRIGGER DTC FOR FREEZE FRAME
DATA
• Is DTC P0200 on the FREEZE FRAME DATA?
5 INSPECT IDM CONNECTOR FOR POOR
CONNECTION
• Turn the engine switch off.
• Inspect for poor connection (such as damaged/
pulled-out terminals, corrosion).
• Is there any malfunction?
6 INSPECT IDM CIRCUIT FOR SHORT TO GND
• Turn the engine switch off.
• Inspect for continuity between the following
terminals and body GND:
— IDM terminal 2B (wiring harness-side)
— IDM terminal 2C (wiring harness-side)
— IDM terminal 2D (wiring harness-side)
— IDM terminal 2E (wiring harness-side)
— IDM terminal 2F (wiring harness-side)
— IDM terminal 1D (wiring harness-side)
— IDM terminal 1C (wiring harness-side)
• Is there continuity?
7 INSPECT IDM FOR SHORT TO POWER
SUPPLY
• Turn the engine switch off.
• Inspect the voltage between following
harnesses and body GND:
— IDM terminal 2B (wiring harness-side)
— IDM terminal 2C (wiring harness-side)
— IDM terminal 2D (wiring harness-side)
— IDM terminal 2E (wiring harness-side)
— IDM terminal 2F (wiring harness-side)
• Is voltage B+?
8 INSPECT IDM
• Inspect the IDM.
• Is there any malfunction?
9 INSPECT PCM CONNECTOR FOR POOR
CONNECTION
• Turn the engine switch off.
• Inspect for poor connection (such as damaged/
pulled-out terminals, corrosion).
• Is there any malfunction?
F2–94
ON-BOARD DIAGNOSTIC
INSPECTION
Yes Go to the next step.
No Record the FREEZE FRAME DATA on the repair order,
then go to the next step.
Yes Perform repair or diagnosis according to the available
Service Information.
• If the vehicle is not repaired, go to the next step.
No Go to the next step.
Yes Go to the next step.
No Intermittent concern exists.
Perform the "INTERMITTENT CONCERNS
TROUBLESHOOTING".
Yes Go to the next step.
No Go to troubleshooting procedures for the DTC in the
FREEZE FRAME DATA.
Yes Repair or replace the suspected terminal, then go to Step
11.
No Go to the next step.
Yes Repair or replace the wiring harness for a short to GND,
then go to Step 11.
No Go to the next step.
Yes Repair or replace the wiring harness for a short to GND,
then go to Step 11.
No Go to the next step.
Yes Replace the IDM, then go to Step 11.
No Go to the next step.
Yes Repair or replace the suspected terminal, then go to Step
11.
No Go to the next step.
ACTION