Suzuki Wagon R Plus RB310, Service Manual

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7B1-54 AUTOMATIC TRANSAXLE (M13 ENGINE)
Troubleshooting
Step Action Yes No
1 Was “Automatic Transaxle Diagnostic Flow
Table” performed? Go to Step 2. Go to “Automatic Tran-
saxle Diagnostic Flow
Table” in this section.
2 Do you have SUZUKI scan tool? Go to Step 3. Go to Step 4.
3 Check Transmission range sensor(switch) cir-
cuit for operation.
Check by using SUZUKI scan tool:
1) Connect SUZUKI scan tool to DLC with igni-
tion switch OFF.
2) Turn ignition switch ON and check transmis-
sion range signal (P, R, N, D, 2 or L) on dis-
play when shifting select lever to each
range.
Is applicable range indicated?
Are check results satisfactory?
Intermittent trouble.
Check for intermittent
referring to “Intermittent
and Poor Connection” in
Section 0A. Go to Step 5.
4 Check Transmission range sensor(switch) cir-
cuit for operation.
Check by not using SUZUKI scan tool:
1) Turn ignition switch ON.
2) Check voltage at terminals E12-1, E12-7,
E12-8, E12-18, E12-19 and E12-20 respec-
tively with select lever shifted to each range.
Taking terminal E12-19 as an example, is bat-
tery voltage indicated only when select lever is
shifted to “2” range and 0 V for other ranges as
shown in table below?
Check voltage at other terminals likewise, refer-
ring to figure.
Are check results satisfactory?
Intermittent trouble.
Check for intermittent
referring to “Intermittent
and Poor Connection” in
Section 0A. Go to Step 5.
5 Check transmission range sensor for installa-
tion position.
1) Shift select lever to “N” range.
2) Check that “N” reference line on sensor and
needle direction shaped on lock washer are
aligned.
Are they aligned?
Go to Step 7. Adjust.
6 Check select cable for adjustment referring to
“Select Cable Adjustment” in this section.
Is it adjusted correctly? Go to Step 6. Adjust.
7 Check Transmission range sensor(switch) refer-
ring to “Transmission Range Sensor” in this
section.
Are check results satisfactory? “YEL”, “ORN”, “RED”,
“BLU/YEL”, “GRN/RED”,
“GRN” or “GRN/BLK” cir-
cuit open or short to
ground.
If wires and connections
are OK, substitute a
know-good TCM and
recheck. Replace Transmission
range sensor.