Mazda CX-7 2007 Workshop Manual page 1362

ON-BOARD DIAGNOSTIC [INSTRUMENT CLUSTER]
DTC U2064[INSTRUMENT CLUSTER]
DTC U2064 Warning light illumination request signal from other modules
DETECTION
• Receive warning light illumination request signal
CONDITION
POSSIBLE
• CAN-related module malfunction
CAUSE
Caution
• DTC U2064 is registered to the instrument cluster by a request from other modules and does not
indicate a malfunction in the instrument cluster itself.
• DTC U2064 may not be cleared during engine starting even if DTC clearing is done using the M-
MDS. When clearing DTC U2064, execute with the ignition switch in the ON position (Engine off).
Diagnostic Procedure
1. Verify the freeze frame data.
(1) Connect the IDS (laptop PC) to the DLC-2.
Note
• Freeze frame data of the instrument cluster
can be displayed by the IDS (laptop PC)
(2) After set up the IDS (laptop PC) (including the
vehicle recognition), the following can be
selected from the IDS (laptop PC) screen.
• Select the "Toolbox" tab.
• Select "Electrical".
• Select "IC Service Functions".
• Select "Freeze Frame Data".
2. Determine which unit is thought to be
malfunctioning based on the freeze frame data.
Note
• If several warning light illumination requests are received, they will be recorded in one freeze frame data.
Freeze frame data
Air bag system warning light
Generator warning light
MIL
Oil pressure warning light
DSC/TCS indicator light
Illuminated
warning light
ABS warning light
Brake system warning light
AT warning light
AWD warning light
Keyless warning light
Speedometer
Meter, gauge
Tachometer
control status
Water temperature gauge
3. Inspect the malfunctioning part.
• Repair or replace if necessary.
4. Clear the DTC from the memory.
5. Turn the ignition switch to the LOCK position.
6. Turn the ignition switch to the ON position.
7. Verify that the DTC U2064 is displayed using the M-MDS.
• If DTC U2064 is displayed, go back to Step 1.
End Of Sie
09-02E–6
2007 Mazda CX-7 Workshop Manual (1871–1U–06B)
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DLC-2
Warning light illumination request unit
Keyless
DSC HU/
TCM control
CM
module
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Revised 12/2006 (Ref. No. R215/06)
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AWD SAS
control control
module module
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