No Lock-Up Occurs - Suzuki Wagon R Plus RB310 Service Manual

7B1-44 AUTOMATIC TRANSAXLE (M13 ENGINE)
Diagnostic Flow Table A-2: No Lock-Up Occurs
System Description
TCM turns TCC solenoid OFF under any of the following conditions.
• Brake light switch is turned ON. (Brake pedal is depressed)
• Engine coolant temperature is less than 60°C (140°F).
• Throttle opening is as much as 0%.
• TCM detects the following DTCs.
P0705/P0707/P0712/P0713/P0717/P0722/P0785/P0962/P0963/P0973/P0974/P0976/P0977/P1701/
P1702/P1703/P2769/P2770
Troubleshooting
WARNING:
• When performing a road test, select a place where there is no traffic or possibility of a traffic acci-
dent and be very careful during testing to avoid occurrence of an accident.
• Road test should be carried out with 2 persons, a driver and tester, on a level road.
Step
1 Was "A/T System Check" performed?
2 Check DTC.
Is DTC P0705, P0707, P0712, P0713, P0717,
P0722, P0785, P0962, P0963, P0973, P0974,
P0976, P0977, P1701, P1702, P1703, P2769
and/or P2770 detected?
3 Perform running test under the following condi-
tions and measure voltage between terminal
"E13-5" of TCM connector and ground.
• O/D OFF switch is turned OFF. ("O/D OFF"
lamp does not light)
• Engine coolant temperature is in normal
operating temperature.
• Select lever is in "D" range.
• Brake pedal is released.
• Drive vehicle with 4th gear and TCC ON
condition referring to "Automatic Gear Shift
Diagram" in this section.
Is terminal voltage about 9 – 14 V?
4 Brake light switch signal inspection.
With ignition switch ON, check voltage between
terminal "E21-9" of ECM connector and
ground.
Brake pedal is released: 0 – 1 V
Brake pedal is depressed: 8 – 14 V
Is result as specified?
Action Yes
Go to Step 2.
Perform DTC flow table to
repair and retry.
Faulty TCC solenoid
valve, circuit or transaxle.
Substitute a known-good
TCM and recheck.
No
Go to "A/T System
Check".
Go to Step 3.
"WHT/BLU" circuit
shorted to ground.
If wire is OK, go to step 4
Mis-adjusted brake light
switch, faulty brake light
switch or its circuit.
If OK, substitute a known-
good TCM and recheck.