Mazda 626 Station Wagon, Workshop Manual

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ON-BOARD DIAGNOSTIC
STEP INSPECTION ACTION
9 INSPECT ATX CONNECTOR CIRCUIT FOR
OPEN
• Turn ignition key to OFF.
• Inspect continuity between ATX connector
terminal H (vehicle hamess-side) and body
ground.
• Is there continuity?
Yes Go to Step 15.
No Repair or replace harness, then go to Step 15.
10
INSPECT TERMINAL CONDITION
• Turn ignition key to OFF.
• Disconnect ATX connector.
• Inspect for bent terminals.
• Are the terminals bent?
Yes Repair or replace terminals, then go to Step 15.
• If terminals cannot be repaired, replace harness, then
goto Step 15.
No Go to next step.
11
INSPECT TFT SENSOR CIRCUIT
• Turn ignition key to ON (engine OFF).
• Verify if ATFT V PID changes to 4.67 V or
above when ATX connector is disconnected.
• Does ATFT V PID change?
Yes Go to next step.
No Go to Step 14.
12
INSPECT TFT SENSOR TERMINALS
CONDITION
• Turn ignition key to OFF.
• Disconnect TFT sensor connector.
• Inspect for bent TFT sensor terminals.
• Are the terminals bent?
Yes Repair terminals or replace TFT sensor, then go to Step
15.
(See K2-35 TRANSAXLE FLUID TEMPERATURE (TFT)
SENSOR REMOVAL/INSTALLATION.)
No Go to next step.
13 INSPECT TFT SENSOR CIRCUIT FOR SHORT
TO GROUND
• Inspect for continuity between TFT sensor
terminals (harness-side) and body ground.
— A and body ground
— B and body ground
• Is there any continuity?
Yes Repair or replace harness, then go to Step 15.
No Replace TFT sensor, then go to Step 15.
(See K2-35 TRANSAXLE FLUID TEMPERATURE (TFT)
SENSOR REMOVAL/INSTALLATION.)
14 INSPECT ATX CONNECTOR CIRCUIT FOR
SHORT TO GROUND
• Turn ignition key to OFF.
• Inspect for continuity between ATX connector
terminal E (vehicle harness-side) and body
ground.
• Is there any continuity?
Yes Repair or replace harness, then go to next step.
No Go to next step.
15 VERIFY TROUBLESHOOTING OF DTC P0710
COMPLETED
• Make sure to reconnect all disconnected
connectors.
• Clear DTC from memory using NGS tester.
• Access VS PID using NGS tester.
• Drive vehicle under following condition for
150 seconds or more while monitoring PID.
— VS PID: 20 km/h {12 mph}
• Is same DTC present?
Yes Replace PCM, then go to next step.
(See Section F1.)
No Go to next step.
16
VERIFY AFTER REPAIR PROCEDURE
• Perform “After Repair Procedure”.
(See K2-61 AFTER REPAIR PROCEDURE.)
• Is there any DTC present?
Yes Go to applicable DTC inspection.
No Troubleshooting completed.
K 2-77