DTC P0705 TRANSMISSION RANGE SENSOR CIRCUIT (PRNDL INPUT)
| DTC P0705 TRANSMISSION RANGE SENSOR CIRCUIT (PRNDL INPUT) |
DIAGNOSIS:
| • |
There is malfunction in inhibitor switch.
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|
| • |
The input signal circuit of inhibitor
switch is open or shorted.
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|
TROUBLE SYMPTOM:
| • |
Shift characteristics are erroneous.
|
|
| • |
Engine brake is not effected when select
lever is in “3” range.
|
|
| • |
Engine brake is not effected when select
lever is in “2” range.
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|
| • |
Engine brake is not effected when select
lever is in “1” range.
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WIRING DIAGRAM:
CHECK “P” RANGE SWITCH.
When the “P” range is selected, does LED light up?
| Yes |
| No |
CHECK INDICATOR LIGHT.
Does the combination meter “P” range indicator illuminate?
| Yes |
| No |
CHECK “P” RANGE SWITCH.
When the “R” range is selected, does “P” range LED light up?
| Yes |
| No |
CHECK “R” RANGE SWITCH.
When the “R” range is selected, does LED light up?
| Yes |
| No |
CHECK INDICATOR LIGHT.
Does the combination meter “R” range indicator illuminate?
| Yes |
| No |
CHECK “R” RANGE SWITCH.
When the “N” range is selected, does “R” range LED light up?
| Yes |
| No |
CHECK “N” RANGE SWITCH.
When the “N” range is selected, does LED light up?
| Yes |
| No |
CHECK INDICATOR LIGHT.
Does the combination meter “N” range indicator illuminate?
| Yes |
| No |
CHECK “N” RANGE SWITCH.
When the “D” range is selected, does “N” range LED light up?
| Yes |
| No |
CHECK “D” RANGE SWITCH.
When the “D” range is selected, does LED light up?
| Yes |
| No |
CHECK INDICATOR LIGHT.
Does the combination meter “D” range indicator illuminate?
| Yes |
| No |
CHECK “D” RANGE SWITCH.
When the “3” range is selected, does “D” range LED light up?
| Yes |
| No |
CHECK “3” RANGE SWITCH.
When the “3” range is selected, does LED light up?
| Yes |
| No |
CHECK INDICATOR LIGHT.
Does the combination meter “3” range indicator illuminate?
| Yes |
| No |
CHECK “3” RANGE SWITCH.
When the “2” range is selected, does “3” range LED light up?
| Yes |
| No |
CHECK “2” RANGE SWITCH.
When the “2” range is selected, does LED light up?
| Yes |
| No |
CHECK INDICATOR LIGHT.
Does the combination meter “2” range indicator illuminate?
| Yes |
| No |
CHECK “2” RANGE SWITCH.
When the “1” range is selected, does “2” range LED light up?
| Yes |
| No |
CHECK “1” RANGE SWITCH.
When the “1” range is selected, does LED light up?
| Yes |
| No |
CHECK INDICATOR LIGHT.
Does the combination meter “1” range indicator illuminate?
| Yes |
| No |
CHECK “1” RANGE SWITCH.
When the “2” range is selected, does “1” range LED light up?
| Yes |
| No |
Replace the TCM.
CHECK HARNESS CONNECTOR BETWEEN INHIBITOR SWITCH AND CHASSIS GROUND.
Turn the ignition switch to OFF.Disconnect the connector from inhibitor switch.
Measure the resistance of harness between inhibitor switch and chassis ground.
Connector & terminal
(T7) No. 5 — Chassis ground:
Is the resistance less than 1 Ω?
| Yes |
| No |
Repair the open circuit in harness between inhibitor switch connector and chassis ground, and poor contact in coupling connector.
CHECK HARNESS CONNECTOR BETWEEN TCM AND INHIBITOR SWITCH.
Turn the ignition switch to OFF.Disconnect the connectors from TCM and inhibitor switch.
Measure the resistance of harness between TCM and inhibitor switch connector.
Connector & terminal
(B55) No. 5 — (T7) No. 9:
Is the resistance less than 1 Ω?
| Yes |
| No |
Repair the open circuit in harness between TCM and inhibitor switch connector, and poor contact in coupling connector.
CHECK INPUT SIGNAL FOR TCM.
Turn the ignition switch to OFF.Connect the connector to TCM and inhibitor switch.
Turn the ignition switch to ON.
Move the select lever to “P” range.
Measure the voltage between TCM and chassis ground.
Connector & terminal
(B55) No. 5 (+) — Chassis ground (−):
Is the voltage less than 1 V?
| Yes |
| No |
CHECK INPUT SIGNAL FOR TCM.
Move the select lever except for “P” range.Measure the voltage between TCM and chassis ground.
Connector & terminal
(B55) No. 5 (+) — Chassis ground (−):
Is the voltage more than 8 V?
| Yes |
| No |
Replace the TCM.
CHECK “P” RANGE INDICATOR LIGHT BULB.
Turn the ignition switch to OFF.Remove the combination meter.
Is the “P” range indicator light OK?
| Yes |
| No |
Replace the combination meter.
CHECK HARNESS CONNECTOR BETWEEN TCM AND COMBINATION METER.
Disconnect the connectors from TCM and combination meter.Measure the resistance of harness between TCM and combination meter.
Connector & terminal
(B55) No. 5 — (i12) No. 14:
Is the resistance less than 1 Ω?
| Yes |
| No |
Repair the open circuit in harness between TCM connector and combination meter, and poor contact in coupling connector.
CHECK HARNESS CONNECTOR BETWEEN TCM AND INHIBITOR SWITCH.
Turn the ignition switch to OFF.Disconnect the connectors from TCM, inhibitor switch and combination meter.
Measure the resistance of harness between TCM and chassis ground.
Connector & terminal
(B55) No. 5 — Chassis ground:
Is the resistance more than 1 MΩ?
| Yes |
| No |
Repair the ground short circuit in “P” range circuit.
CHECK HARNESS CONNECTOR BETWEEN TCM AND INHIBITOR SWITCH.
Turn the ignition switch to OFF.Disconnect the connectors from TCM and inhibitor switch.
Measure the resistance of harness between TCM and inhibitor switch connector.
Connector & terminal
(B55) No. 14 — (T7) No. 8:
Is the resistance less than 1 Ω?
| Yes |
| No |
Repair the open circuit in harness between TCM and inhibitor switch connector, and poor contact in coupling connector.
CHECK INPUT SIGNAL FOR TCM.
Turn the ignition switch to OFF.Connect the connector to TCM and inhibitor switch.
Turn the ignition switch to ON.
Move the select lever to “R” range.
Measure the voltage between TCM and chassis ground.
Connector & terminal
(B55) No. 14 (+) — Chassis ground (−):
Is the voltage less than 1 V?
| Yes |
| No |
CHECK INPUT SIGNAL FOR TCM.
Move the select lever except for “R” range.Measure the voltage between TCM and chassis ground.
Connector & terminal
(B55) No. 14 (+) — Chassis ground (−):
Is the voltage more than 8 V?
| Yes |
| No |
Replace the TCM.
CHECK “R” RANGE INDICATOR LIGHT BULB.
Turn the ignition switch to OFF.Remove the combination meter.
Is “R” range indicator light OK?
| Yes |
| No |
Replace the combination meter.
CHECK HARNESS CONNECTOR BETWEEN TCM AND COMBINATION METER.
Disconnect the connectors from TCM and combination meter.Measure the resistance of harness between TCM and combination meter.
Connector & terminal
(B55) No. 14 — (i12) No. 13:
Is the resistance less than 1 Ω?
| Yes |
| No |
Repair the open circuit in harness between TCM connector and combination meter, and poor contact in TCM connector.
CHECK HARNESS CONNECTOR BETWEEN TCM AND INHIBITOR SWITCH.
Turn the ignition switch to OFF.Disconnect the connectors from TCM, inhibitor switch and combination meter.
Measure the resistance of harness between TCM and chassis ground.
Connector & terminal
(B55) No. 14 — Chassis ground:
Is the resistance more than 1 MΩ?
| Yes |
| No |
Repair the ground short circuit in “R” range circuit.
CHECK HARNESS CONNECTOR BETWEEN TCM AND INHIBITOR SWITCH.
Turn the ignition switch to OFF.Disconnect the connectors from TCM and inhibitor switch.
Measure the resistance of harness between TCM and inhibitor switch connector.
Connector & terminal
(B55) No. 22 — (T7) No. 10:
Is the resistance less than 1 Ω?
| Yes |
| No |
Repair the open circuit in harness between TCM and inhibitor switch connector, and poor contact in coupling connector.
CHECK INPUT SIGNAL FOR TCM.
Turn the ignition switch to OFF.Connect the connector to TCM and inhibitor switch.
Turn the ignition switch to ON.
Move the select lever to “N” range.
Measure the voltage between TCM and chassis ground.
Connector & terminal
(B55) No. 22 (+) — Chassis ground (−):
Is the voltage less than 1 V?
| Yes |
| No |
CHECK INPUT SIGNAL FOR TCM.
Move the select lever to except for “N” range.Measure the voltage between TCM and chassis ground.
Connector & terminal
(B55) No. 22 (+) — Chassis ground (−):
Is the voltage more than 8 V?
| Yes |
| No |
Replace the TCM.
CHECK “N” RANGE INDICATOR LIGHT BULB.
Turn the ignition switch to OFF.Remove the combination meter.
Is the “N” range indicator light OK?
| Yes |
| No |
Replace the combination meter.
CHECK HARNESS CONNECTOR BETWEEN TCM AND COMBINATION METER.
Disconnect the connectors from TCM and combination meter.Measure the resistance of harness between TCM and combination meter.
Connector & terminal
(B55) No. 22 — (i12) No. 12:
Is the resistance less than 1 Ω?
| Yes |
| No |
Repair the open circuit in harness between TCM connector and combination meter, and poor contact in TCM connector.
CHECK HARNESS CONNECTOR BETWEEN TCM AND INHIBITOR SWITCH.
Turn the ignition switch to OFF.Disconnect the connectors from TCM, inhibitor switch and combination meter.
Measure the resistance of harness between TCM and chassis ground.
Connector & terminal
(B55) No. 22 — Chassis ground:
Is the resistance more than 1 MΩ?
| Yes |
| No |
Repair the ground short circuit in “N” range circuit.
CHECK HARNESS CONNECTOR BETWEEN TCM AND INHIBITOR SWITCH.
Turn the ignition switch to OFF.Disconnect the connectors from TCM and inhibitor switch.
Measure the resistance of harness between TCM and inhibitor switch connector.
Connector & terminal
(B55) No. 4 — (T7) No. 3:
Is the resistance less than 1 Ω?
| Yes |
| No |
Repair the open circuit in harness between TCM and inhibitor switch connector, and poor contact in coupling connector.
CHECK INPUT SIGNAL FOR TCM.
Turn the ignition switch to OFF.Connect the connector to TCM and inhibitor switch.
Turn the ignition switch to ON.
Move the select lever to “D” range.
Measure the voltage between TCM and chassis ground.
Connector & terminal
(B55) No. 4 (+) — Chassis ground (−):
Is the voltage less than 1 V?
| Yes |
| No |
CHECK INPUT SIGNAL FOR TCM.
Move the select lever except for “D” range.Measure the voltage between TCM and chassis ground.
Connector & terminal
(B55) No. 4 (+) — Chassis ground (−):
Is the voltage more than 8 V?
| Yes |
| No |
Replace the TCM.
CHECK “D” RANGE INDICATOR LIGHT BULB.
Turn the ignition switch to OFF.Remove the combination meter.
Is the “D” range indicator light OK?
| Yes |
| No |
Replace the combination meter.
CHECK HARNESS CONNECTOR BETWEEN TCM AND COMBINATION METER.
Disconnect the connectors from TCM and combination meter.Measure the resistance of harness between TCM and combination meter.
Connector & terminal
(B55) No. 4 — (i12) No. 11:
Is the resistance less than 1 Ω?
| Yes |
| No |
Repair the open circuit in harness between TCM connector and combination meter, and TCM connector.
CHECK HARNESS CONNECTOR BETWEEN TCM AND INHIBITOR SWITCH.
Turn the ignition switch to OFF.Disconnect the connectors from TCM, inhibitor switch and combination meter.
Measure the resistance of harness between TCM and chassis ground.
Connector & terminal
(B55) No. 4 — Chassis ground:
Is the resistance more than 1 MΩ?
| Yes |
| No |
Repair the ground short circuit in “D” range circuit.
CHECK HARNESS CONNECTOR BETWEEN TCM AND INHIBITOR SWITCH.
Turn the ignition switch to OFF.Disconnect the connector from TCM and inhibitor switch.
Measure the resistance of harness between TCM and inhibitor switch connector.
Connector & terminal
(B54) No. 16 — (T7) No. 11:
Is the resistance less than 1 Ω?
| Yes |
| No |
Repair the open circuit in harness between TCM and inhibitor switch connector, and poor contact in coupling connector.
CHECK INPUT SIGNAL FOR TCM.
Turn the ignition switch to OFF.Connect the connector to TCM and inhibitor switch.
Turn the ignition switch to ON.
Move the select lever to “3” range.
Measure the voltage between TCM and chassis ground.
Connector & terminal
(B54) No. 15 (+) — Chassis ground (−):
Is the voltage less than 1 V?
| Yes |
| No |
CHECK INPUT SIGNAL FOR TCM.
Move the select lever except for “3” range.Measure the voltage between TCM and chassis ground.
Connector & terminal
(B54) No. 15 (+) — Chassis ground (−):
Is the voltage more than 8 V?
| Yes |
| No |
Replace the TCM.
CHECK “3” RANGE INDICATOR LIGHT BULB.
Turn the ignition switch to OFF.Remove the combination meter.
Is the “3” range indicator light OK?
| Yes |
| No |
Replace the combination meter.
CHECK HARNESS CONNECTOR BETWEEN TCM AND COMBINATION METER.
Disconnect the connectors from TCM and combination meter.Measure the resistance of harness between TCM and combination meter.
Connector & terminal
(B51) No. 15 — (i12) No. 10:
Is the resistance less than 1 Ω?
| Yes |
| No |
Repair the open circuit in harness between TCM connector and combination meter, and poor contact in TCM connector.
CHECK HARNESS CONNECTOR BETWEEN TCM AND INHIBITOR SWITCH.
Turn the ignition switch to OFF.Disconnect the connectors from TCM, inhibitor switch and combination meter.
Measure the resistance of harness between TCM and chassis ground.
Connector & terminal
(B54) No. 15 — Chassis ground:
Is the resistance more than 1 MΩ?
| Yes |
| No |
Repair the ground short circuit in “3” range circuit.
CHECK HARNESS CONNECTOR BETWEEN TCM AND INHIBITOR SWITCH.
Turn the ignition switch to OFF.Disconnect the connector from TCM and inhibitor switch.
Measure the resistance of harness between TCM and inhibitor switch connector.
Connector & terminal
(B54) No. 4 — (T7) No. 4:
Is the resistance less than 1 Ω?
| Yes |
| No |
Repair the open circuit in harness between TCM and inhibitor switch connector, and poor contact in coupling connector.
CHECK INPUT SIGNAL FOR TCM.
Turn the ignition switch to OFF.Connect the connector to TCM and inhibitor switch.
Turn the ignition switch to ON.
Move the select lever to “2” range.
Measure the voltage between TCM and chassis ground.
Connector & terminal
(B54) No. 4 (+) — Chassis ground (−):
Is the voltage less than 1 V?
| Yes |
| No |
CHECK INPUT SIGNAL FOR TCM.
Move the select lever except for “2” range.Measure the voltage between TCM and chassis ground.
Connector & terminal
(B54) No. 4 (+) — Chassis ground (−):
Is the voltage more than 8 V?
| Yes |
| No |
Replace the TCM.
CHECK “2” RANGE INDICATOR LIGHT BULB.
Turn the ignition switch to OFF.Remove the combination meter.
Is the “2” range indicator light OK?
| Yes |
| No |
Replace the combination meter.
CHECK HARNESS CONNECTOR BETWEEN TCM AND COMBINATION METER.
Disconnect the connectors from TCM and combination meter.Measure the resistance of harness between TCM and combination meter.
Connector & terminal
(B54) No. 4 — (i12) No. 4:
Is the resistance less than 1 Ω?
| Yes |
| No |
Repair the open circuit in harness between TCM and combination meter, and poor contact in TCM connector.
CHECK HARNESS CONNECTOR BETWEEN TCM AND INHIBITOR SWITCH.
Turn the ignition switch to OFF.Disconnect the connectors from TCM, inhibitor switch and combination meter.
Measure the resistance of harness between TCM and chassis ground.
Connector & terminal
(B54) No. 4 — Chassis ground:
Is the resistance more than 1 MΩ?
| Yes |
| No |
Repair the ground short circuit in “2” range circuit.
CHECK HARNESS CONNECTOR BETWEEN TCM AND INHIBITOR SWITCH.
Turn the ignition switch to OFF.Disconnect the connectors from TCM and inhibitor switch.
Measure the resistance of harness between TCM and inhibitor switch connector.
Connector & terminal
(B54) No. 10 — (T7) No. 6:
Is the resistance less than 1 Ω?
| Yes |
| No |
Repair the open circuit in harness between TCM and inhibitor switch connector, and poor contact in coupling connector.
CHECK INPUT SIGNAL FOR TCM.
Turn the ignition switch to OFF.Connect the connector to TCM and inhibitor switch.
Turn the ignition switch to ON.
Move the select lever to “1” range.
Measure the voltage between TCM and chassis ground.
Connector & terminal
(B54) No. 10 (+) — Chassis ground (−):
Is the voltage less than 1 V?
| Yes |
| No |
CHECK INPUT SIGNAL FOR TCM.
Move the select lever except for “1” range.Measure the voltage between TCM and chassis ground.
Connector & terminal
(B54) No. 10 (+) — Chassis ground (−):
Is the voltage more than 8 V?
| Yes |
| No |
Replace the TCM.
CHECK “1” RANGE INDICATOR LIGHT BULB.
Turn the ignition switch to OFF.Remove the combination meter.
Is the “1” range indicator light OK?
| Yes |
| No |
Replace the combination meter.
CHECK HARNESS CONNECTOR BETWEEN TCM AND COMBINATION METER.
Disconnect the connectors from TCM and combination meter.Measure the resistance of harness between TCM and combination meter.
Connector & terminal
(B54) No. 10 — (i12) No. 5:
Is the resistance less than 1Ω?
| Yes |
| No |
Repair the open circuit in harness between TCM and combination meter, poor contact in TCM connector.
CHECK HARNESS CONNECTOR BETWEEN TCM AND INHIBITOR SWITCH.
Turn the ignition switch to OFF.Disconnect the connectors from TCM, inhibitor switch and combination meter.
Measure the resistance of harness between TCM and chassis ground.
Connector & terminal
(B54) No. 10 — Chassis ground:
Is the resistance more than 1 MΩ?
| Yes |
| No |
Repair the ground short circuit in “1” range circuit.
CHECK POOR CONTACT.
Is there poor contact in inhibitor switch circuit?
| Yes |
Repair the poor contact.
| No |
CHECK INHIBITOR SWITCH.
Is the inhibitor switch in proper position?
| Yes |
Replace the TCM.
| No |
Adjust the inhibitor switch and select
cable.
and
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