Mazda 626 Station Wagon, Workshop Manual

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ON-BOARD DIAGNOSTIC
STEP INSPECTION
ACTION
4 INSPECT POOR INSTALLATION OF
GENERATOR TERMINAL
• Turn ignition key to OFF.
• Check for looseness of generator terminal B
installation nut.
• Is nut loose?
Yes Tighten generator terminal B installation nut, then go
to Step 7.
No Go to next step.
5 INSPECT POOR INSTALLATION OF BATTERY
POSITIVE TERMINAL
• Check for looseness of battery positive
terminal.
• Is terminal loose?
Yes Connect battery positive terminal correctly, then go to
Step 7.
No Go to next step.
6 INSPECT BATTERY CHARGING CIRCUIT
• Start engine.
• Disconnect battery positive terminal.
• Does engine stall?
Yes
Repair or replace harness between generator terminal
B and battery positive terminal, then go to next step.
No Go to next step.
7 VERIFY TROUBLESHOOTING OF DTC P1634
COMPLETED
• Make sure to reconnect all disconnected
connectors.
• Clear DTC from memory using NGS tester.
• Turn ignition key to OFF, then start engine.
• Is same DTC present?
Yes Replace PCM, then go to next step.
No Go to next step.
8 VERIFY AFTER REPAIR PROCEDURE
• Perform “After Repair Procedure."
(See F1-36 AFTER REPAIR PROCEDURE)
• Are any DTCs present?
Yes Go to applicable DTC inspection.
(See F1-37 DTC TABLE)
No Troubleshooting completed.
F1-98