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Home >> Suzuki >> 2007 >> Reno Standard >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine - Diagnostic Codes (4 Of 4) >> DTC P2135: Throttle Position (TP) Sensor 1 - 2 Correlation >> Troubleshooting
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DTC P2135: Throttle Position (TP) Sensor 1 - 2 Correlation: Troubleshooting

TROUBLESHOOTING CHART

Step Action Value (s) Yes No
1 Did you perform the Diagnostic System Check? - Go to Step 2 Go to On-Board Diagnostic (OBD II) System Check
2
  1. Turn the ignition ON, with the engine OFF.
  2. Observe the Throttle Position (TP) sensor 1 and sensor 2 with a scan tool.

Does the scan tool TP sensor 1 and sensor 2 parameter indicate Disagree?		 - Go to Step 4 Go to Step 3
3
  1. Remove the air inlet duct from the throttle body.
  2. Disconnect the throttle actuator motor harness connector.
  3. Slowly, manually open the throttle plate to Wide Open Throttle (WOT) and back to the closed throttle position several times while observing the scan tool TP sensor parameter.

Does the TP sensor parameter change from Agree to Disagree during the above test?		 - Go to Step 17 Go to Step 4
4
  1. Disconnect the Throttle Position (TP) sensor harness connector.
  2. Disconnect the Throttle Actuator Control (TAC) module harness connectors.
  3. Test the TP sensor 1 5 volt reference circuit for resistance.

Did the DTC fail this ignition?		 - Go to Step 19 Go to Step 5
5 Test for a short between the TP sensor 1 5 volt reference circuit and all other ECM circuits.
Did you find and correct the condition?		 - Go to Step 19 Go to Step 5
6 Test the TP sensor 1 signal circuit for resistance.
Did you find and correct the condition?		 - Go to Step 19 Go to Step 7
7 Test for a short between the TP sensor 1 signal circuit and all other ECM circuits.
Did you find and correct the condition?		 10 Ω Go to Step 19 Go to Step 8
8 Test the TP sensor 1 low reference circuit for resistance.
Did you find and correct the condition?		 - Go to Step 19 Go to Step 9
9 Test for a short between the TP sensor 1 low reference circuit and all other ECM circuits.
Did you find and correct the condition?		 - Go to Step 19 Go to Step 10
10 Test the TP sensor 2 5 volt reference circuit for resistance.
Did you find and correct the condition?		 - Go to Step 19 Go to Step 11
11 Test for a short between the TP sensor 2 5 volt reference circuit and all other ECM circuits.
Did you find and correct the condition?		 - Go to Step 19 Go to Step 12
12 Test the TP sensor 2 signal circuit for resistance.
Did you find and correct the condition?		 - Go to Step 19 Go to Step 13
13 Test for a short between the TP sensor 2 signal circuit and all other ECM circuits.
Did you find and correct the condition?		 - Go to Step 19 Go to Step 14
14 Test the TP sensor 2 low reference circuit for resistance.
Did you find and correct the condition?		 - Go to Step 19 Go to Step 15
15 Test for a short between the TP sensor 2 low reference circuit and all other ECM circuits.
Did you find and correct the condition?		 - Go to Step 19 Go to Step 16
16 Inspect for poor connections at the harness connector of the ECM.
Did you find and correct the condition?		 - Go to Step 19 Go to Step 17
17 Inspect for poor connections at the harness connector of the TP sensor.
Did you find and correct the condition?		 - Go to Step 19 Go to Step 18
18 Replace the throttle body assembly.
Did you complete the replacement?		 - Go to Step 19 -
19
  1. Clear the DTCs with a scan tool.
  2. Turn the ignition OFF for 30 seconds.
  3. Start the engine.
  4. Operate the vehicle within the Conditions for Setting the DTC. You may also operate the vehicle within the conditions that you observed from the Freeze/Frame Failure Records.

Does the DTC run and pass?		 - Go to Step 20 Go to Step 2
20 Check if any additional DTCs are set.
Are there any DTCs that have not been diagnosed?		 - Go to applicable DTC TABLE System OK
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