Mazda CX-7 2007 Workshop Manual page 928

ON-BOARD DIAGNOSTIC [AW6A-EL, AW6AX-EL]
STEP
9 INSPECT M RANGE SWITCH, UP SWITCH, AND
DOWN SWITCH CIRCUIT FOR OPEN CIRCUIT
• Inspect for continuity between TCM connector
terminals and selector lever component
terminals (wiring harness-side).
— Terminal A7 and terminal C (M range switch)
— Terminal A3 and terminal A (up switch)
— Terminal A4 and terminal B (down switch)
• Is there continuity?
10 VERIFY TROUBLESHOOTING OF DTC P0819
COMPLETED
• Make sure to reconnect all the disconnected
connectors.
• Clear the DTC from the memory using the M-
MDS.
• Drive the vehicle in M range, and change gears
by shifting the selector lever (operating the up
and down switches).
• Is same DTC present?
11 VERIFY AFTER REPAIR PROCEDURE
• Perform the "After Repair Procedure".
(See 05-02-4 AFTER REPAIR
PROCEDURE[AW6A-EL, AW6AX-EL].)
• Are any DTCs present?
End Of Sie
DTC P0882[AW6A-EL, AW6AX-EL]
DTC P0882 TCM B+ low
• Voltage of less than 9 V detected at TCM terminals A1 and A11 when engine is running.
Diagnostic support note:
• This is a continuous monitor (CCM).
• The MIL does not illuminate if the TCM detects the above malfunction condition during the first drive cycle.
DETECTION
• A PENDING CODE is not available.
CONDITION
• FREEZE FRAME DATA is available.
• The AT warning light not illuminates.
• The DTC is stored in the TCM memory.
• Melted METER IG 15 A fuse
• Melted TCM 10 A fuse
• Open circuit in wiring harness between TCM 10 A fuse and TCM terminal A1
• Open circuit in wiring harness between METER IG 15 A fuse and TCM terminal A11
POSSIBLE
• Open circuit in wiring harness between TCM terminal A9 and body ground
CAUSE
• Short to ground in wiring harness between TCM 10 A fuse and TCM terminal A1
• Short to ground in wiring harness between ROOM 15 A fuse and TCM terminal A11
• Poor connection of TCM connector
• TCM malfunction
B+
IG1
METER IG 15 A
TCM 10 A
FUSE
FUSE
3
3
05-02–40
INSPECTION
4
5 6
4
5 6
8
Yes Go to the next step.
No Repair or replace the harness, then go to the next step.
Yes Replace the TCM, then go to the next step.
(See 05-17-25 TCM REMOVAL/INSTALLATION[AW6A-EL,
AW6AX-EL].)
No Go to the next step.
Yes Go to the applicable DTC inspection.
(See 05-02-5 DTC TABLE[AW6A-EL, AW6AX-EL].)
No DTC troubleshooting completed.
TCM
7
A11
7
A1
7
A9
ACTION
id050211802800
TCM WIRING HARNESS-
SIDE CONNECTOR
A1
A11
A9