Mazda 6 2002 - Page 455

ON-BOARD DIAGNOSTIC
K81
K
Diagnostic procedure
STEP INSPECTION ACTION
1 VERIFY RELATED REPAIR INFORMATION
AVAILABILITY
• Check for related Service Bulletins availability.
• Is any related repair information available?
Yes Perform repair or diagnosis according to available repair
information.
• If vehicle is not repaired, go to next step.
No Go to next step.
2 INSPECT ATX CONNECTOR FOR POOR
CONNECTION
• Turn ignition key to OFF.
• Disconnect ATX connector.
• Check for poor connection (damaged/pulled-
out terminal, corrosion, etc.).
• Is connection okay?
Yes Go to next step.
No Repair or replace connector and/or terminals, then go to
Step 10.
3 INSPECT RESISTANCE
• Inspect resistance between ATX connector
(transaxle case side) terminals D and I.
• Is resistance within 2.47.3 ohms?
(See K26 Resistance Inspection (On-Vehicle
Inspection).)
Yes Go to Step 6.
No Go to next step.
4 INSPECT PRESSURE CONTROL SOLENOID
CONNECTOR FOR POOR CONNECTION
• Disconnect pressure control solenoid
connector.
• Check for poor connection (damaged/pulled-
out terminal, corrosion, etc.).
• Is connection okay?
Yes Go to next step.
No Repair or replace connector and/or terminals, then go to
Step 10.
5 INSPECT RESISTANCE
• Inspect resistance between pressure control
solenoid terminals A and B.
• Is resistance within 2.47.3 ohms?
(See K27 Resistance Inspection (Off-Vehicle
Inspection).)
Yes Replace solenoid harness, then go to Step 10.
No Verify pressure control solenoid installation.
• If solenoid installed correctly, replace pressure control
solenoid, then go to Step 10.
(See K28 SOLENOID VALVE REMOVAL/
INSTALLATION.)
6 INSPECT PCM CONNECTOR FOR POOR
CONNECTION
• Disconnect PCM connector.
• Check for poor connection (damaged/pulled-
out terminals, corrosion, etc.).
• Is connection okay?
Yes Go to next step.
No Repair or replace connector and/or terminals, then go to
Step 10.
7 INSPECT ATX CONNECTOR CIRCUIT FOR
OPEN
• Inspect for continuity between PCM (harness-
side) and ATX connector (vehicle harness-
side).
 PCM terminal 3Y and ATX connector
terminal D
 PCM terminal 3V and ATX connector
terminal I
• Is there continuity between terminals?
Yes Go to next step.
No Repair or replace harness, the go to Step 10.
8 INSPECT ATX CONNECTOR CIRCUIT FOR
SHORT TO POWER
• Turn ignition key to ON (engine OFF).
• Inspect voltage at ATX connector terminal D
(vehicle harness-side).
• Is voltage 0 V?
Yes Go to next step.
No Repair or replace harness, then go to Step 10.
9 INSPECT PCM CIRCUIT FOR SHORT TO
GROUND
• Turn ignition key to OFF.
• Inspect for continuity between ATX connector
terminal D (harness-side) and body ground.
• Is there continuity?
Yes Repair or replace harness, then go to next step.
No Go to next step.