Test Description

WARNING: This page is about a different car, the 2004 Chevrolet Corvette. However, it is still accessible from the selected car via links, so may be relevant.

The number(s) below refer to the step number(s) on the diagnostic table.

3: Tests for the proper operation of the signal circuit in the high voltage range.
4: Tests for the proper operation of the signal circuit in the low voltage range. If the fuse in the jumper opens when you perform this test, the signal circuit is shorted to voltage.
5: Tests for a short to ground in the 5 volt reference circuit.

DTC B2605-B2607

Step -	Action	Value(s)	Yes	No
Schematic Reference: Memory Seats Schematics
1	Did you perform the Power Seats Systems Diagnostic System Check?	-	Go to Step 2	Go to Diagnostic System Check - Power Seat Systems
2	Install a scan tool. Observe the position sensor parameter for which the DTC has set in the SCM data list. Does the scan tool indicate that the position sensor parameter is within the specified range?	0.1-4.78 V	Go to Diagnostic Aids	Go to Step 3
3	Disconnect the position sensor for which the DTC has set. With a scan tool, observe the position sensor parameter. Does the scan tool indicate that the position sensor parameter is greater than the specified value?	4.5 V	Go to Step 4	Go to Step 8
4	Connect a 3 amp fused jumper wire between the signal circuit and the low reference circuit of the position sensor. With a scan tool, observe the position sensor parameter. Does the scan tool indicate that the position sensor parameter is less than the specified value?	0.5 V	Go to Step 5	Go to Step 9
5	Disconnect the fused jumper wire. Connect a 3 amp fused jumper wire between the 5 volt reference circuit and the signal circuit of the position sensor. With a scan tool, observe the position sensor parameter. Does the scan tool indicate that the position sensor parameter is greater than the specified value?	4.5 V	Go to Step 7	Go to Step 6
6	Test the 5 volt reference circuit for a short to ground. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition?	-	Go to Step 15	Go to Step 12
7	Test the 5 volt reference circuit for a short to voltage, 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 15	Go to Step 11
8	Test the signal circuit for a short to ground. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition?	-	Go to Step 15	Go to Step 12
9	Test the signal circuit of the for a short to voltage, 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 15	Go to Step 10
10	Test the low reference circuit 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 15	Go to Step 12
11	Inspect for poor connections at the harness connector of the position 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 15	Go to Step 13
12	Inspect for poor connections at the harness connector of the memory seat module. 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 15	Go to Step 14
13	Replace the position sensor for which the DTC has set. Refer to Seat Adjuster Motor Replacement - Front . Did you complete the replacement?	-	Go to Step 15	-
14	Replace the memory seat module. Refer to Memory Seat Control Module Replacement . Did you complete the replacement?	-	Go to Step 15	-
15	Use the scan tool in order to clear the DTCs. Operate the system within the Conditions for Running the DTC as specified in the supporting text. Does the DTC reset?	-	Go to Step 2	System OK