Mazda CX-7 2007 Workshop Manual page 927

ON-BOARD DIAGNOSTIC [AW6A-EL, AW6AX-EL]
Diagnostic procedure
STEP
1 VERIFY FREEZE FRAME DATA HAS BEEN
RECORDED
• Has the FREEZE FRAME DATA been
recorded?
2 VERIFY RELATED REPAIR INFORMATION
AVAILABILITY
• Verify related Service Bulletins and/or on-line
repair information availability.
• Is any related repair information available?
3 INSPECT VOLTAGE OF M RANGE SWITCH, UP
SWITCH, AND DOWN SWITCH CIRCUIT
• Turn the ignition switch to the ON position.
(engine off)
• Shift the selector lever to any except M range.
• Inspect for voltage between TCM connector
terminals (wiring harness-side)
— Terminal A7 and ground (M range switch)
— Terminal A3 and ground (up switch)
— Terminal A4 and ground (down switch)
• Is the voltage B+?
4 INSPECT TCM CONNECTOR FOR POOR
CONNECTION
• Disconnect the TCM connector.
• Inspect for poor connection (such as damaged/
pulled-out pins, corrosion).
• Are terminals normal?
5 INSPECT SELECTOR LEVER COMPONENT
FOR POOR CONNECTION
• Disconnect the selector lever component
connector.
• Inspect for poor connection (such as damaged/
pulled-out pins, corrosion).
• Are terminals normal?
6 INSPECT M RANGE SWITCH, UP SWITCH, AND
DOWN SWITCH CIRCUIT FOR SHORT TO
GROUND
• Inspect for continuity between selector lever
component terminals (wiring harness-side) and
body ground.
— Terminal C and body ground (M range
switch)
— Terminal A and body ground (up switch)
— Terminal B and body ground (down switch)
• Is there continuity?
7 INSPECT M RANGE SWITCH, UP SWITCH, AND
DOWN SWITCH
• Inspect the M range switch, up switch, and
down switch.
(See 05-18-6 SELECTOR LEVER
COMPONENT INSPECTION)
• Are the switches normal?
8 INSPECT M RANGE SWITCH, UP SWITCH, AND
DOWN SWITCH CIRCUIT FOR OPEN CIRCUIT
• Inspect for continuity between selector lever
component terminal D (wiring harness-side)
and body ground.
• Is there continuity?
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
repair information.
• If the vehicle is not repaired, go to the next step.
No Go to the next step.
Yes Go to go to Step 10.
No Go to the next step.
Yes Go to the next step.
No Replace the couple component, then go to Step 10.
Yes Go to the next step.
No Replace the couple component, then go to Step 10.
Yes Repair or replace the harness, then go to Step 10.
No Go to the next step.
Yes Go to the next step.
No Replace the selector lever, then go to Step 10.
(See 05-18-7 SELECTOR LEVER COMPONENT
REMOVAL/INSTALLATION.)
Yes Go to the next step.
No Repair or replace the harness, then go to Step 10.
ACTION
05-02–39
05-02