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Infiniti QX56 (Z62). Manual - part 1292
TCM
TM-77
< ECU DIAGNOSIS INFORMATION >
[7AT: RE7R01B]
C
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1ST ENGINE BRAKE PROTECTION CONTROL
Controls the engine brake so as not to make effective by turning the front brake solenoid output to OFF when
each solenoid becomes the electricity pattern of 1st engine brake during driving at the vehicle speed 25 km/h
or more in any positions other than “R” position and 1GR.
TCM HIGH TEMPERATURE PROTECTION CONTROL
Limit the accelerator opening and forcibly control the vehicle to the low torque driving when the electronic sub-
strate in TCM reaches the high temperature.
DTC Inspection Priority Chart
INFOID:0000000006226785
If some DTCs are displayed at the same time, perform inspections one by one based on the priority as per the
following list.
Malfunction detection condition
Vehicle speed: 10 km/h (7 MPH) or more
Control at malfunction
Neutral
Normal return condition
• Vehicle speed: 8 km/h (5 MPH) or less
and
• Engine speed: 2,200 rpm or less
Vehicle behavior
• The torque transmission cannot be performed
• There is a shock just before a vehicle stop
Malfunction detection condition
• Select lever and gear: Any position other than “R” position and 1GR
and
• Vehicle speed: More than 25 km/h (16 MPH)
Control at malfunction
Front brake solenoid output signal; OFF
Normal return condition
Other than detection condition of malfunction
Vehicle behavior
Does not exist
Malfunction detection condition
TCM electronic substrate temperature
• 145
°
C (293
°
F) and 120 seconds
or
• 150
°
C (302
°
F)
Control at malfunction
Accelerator opening: 0.5/8 or less
Normal return condition
• TCM electronic substrate temperature: Less than 140
°
C (284
°
F)
and
• Vehicle speed: 5 km/h (3 MPH) or less
Vehicle behavior
Accelerator opening: output torque of approximately 0.5/8
Priority
Detected items (DTC)
Reference
1
U1000 CAN COMM CIRCUIT