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Home >> Suzuki >> 2004 >> Swift + >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - 1.6L (L91) (DTC P0300 To DTC P0488) >> Diagnostic Information & Procedures >> DTC P0317 >> Test Description
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Test Description

The numbers below refer to the step numbers on the diagnostic table.

  1. 11:  This step tests for a poor connection at the ECM or the harness connections for backed-out terminals, improper mating, broken locks, improperly formed or damaged terminals, and a poor terminal-to-wire connection.
DTC P0317

Step Action Values Yes No
1 Did you perform the Diagnostic System Check - Engine Controls? - Go to Step 2  Go to Diagnostic System Check - Engine Controls
2 Did DTCs P0502, P1380, P1381, P1391, P1392, or P1393 also set? - Go to Diagnostic Trouble Code (DTC) List Go to Step 3 
3
  1. Observe the Freeze Frame/Failure Records for this DTC.
  2. Turn OFF the ignition for 30 seconds.
  3. Operate the vehicle within the Conditions for Running the DTC. You may also operate the vehicle within the conditions that you observed from the Freeze Frame/Failure Records.
Does the DTC fail this ignition?		 - Go to Step 4  Go to Intermittent Conditions
4 Is the vehicle equipped with an anti-lock brake system (ABS)? - Go to Step 9  Go to Step 5 
5
  1. Disconnect the rough road sensor.
  2. Turn ON the ignition, with the engine OFF.
  3. Measure the voltage from the 5-volt reference circuit of the rough road sensor to a good ground with a DMM.
Is the voltage within the specified range?		 4.8-5.2 V Go to Step 7  Go to Step 6 
6
IMPORTANT: The 5-volt reference circuits are internally connected within the controller. Other sensors that share the 5-volt reference circuit may also have DTCs set. Disconnecting a sensor on the shared 5-volt reference circuit may isolate a shorted sensor. Review the electrical schematic and diagnose the shared circuits and sensors.
Test the 5-volt reference circuit between the engine control module (ECM) and the rough road sensor for a high resistance or an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.Did you find and correct the condition?		 - Go to Step 14  Go to Step 7 
7 Test the signal circuit of the rough road sensor for a high resistance or an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.
Did you find and correct the condition?		 - Go to Step 14  Go to Step 8 
8
  1. Reconnect the ECM and connect a jumper wire between each of the terminals in the rough road sensor harness connector and the corresponding terminal at the rough road sensor. Refer to Using Connector Test Adapters in Wiring Systems.
  2. Turn ON the ignition, with the engine OFF.
  3. Measure the voltage from the 5-volt reference circuit of the rough road sensor at the jumper wire terminal to a good ground with a DMM. Refer to Measuring Voltage Drop in Wiring Systems.
Is the voltage within the specified range?		 2.35-2.65 V Go to Step 11  Go to Step 10 
9 Test the circuit between the electronic brake control module (EBCM) connector and the ECM for a high resistance or an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.
Did you find and correct the condition?		 - Go to Step 14  Go to Diagnostic System Check - ABS
10 Test for an intermittent and for a poor connection at the rough road sensor. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems.
Did you find and correct the condition?		 - Go to Step 14  Go to Step 12 
11  Test for an intermittent and for a poor connection at the engine control module (ECM). Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems.
Did you find and correct the condition?		 - Go to Step 14  Go to Step 13 
12 Replace the rough road sensor. Refer to ROUGH ROAD SENSOR REPLACEMENT .
Did you complete the replacement?		 - Go to Step 14  -
13 Replace the ECM. Refer to Engine Control Module (ECM) Replacement .
Did you complete the replacement?		 - Go to Step 14  -
14
  1. Clear the DTCs with a scan tool.
  2. Turn OFF the ignition for 30 seconds.
  3. Start the engine.
  4. Operate the vehicle within the Conditions for Running the DTC. You may also operate the vehicle within the conditions that you observed from the Freeze Frame/Failure Records.
Did the DTC fail this ignition?		 - Go to Step 15  Go to Step 2 
15 Observe the Capture Info with a scan tool.
Are there any DTCs that have not been diagnosed?		 - Go to Diagnostic Trouble Code (DTC) List System OK
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