Speedometer and/or Odometer Inaccurate or Inoperative. Cadillac Catera 2001

For 1990-2009 cars only

Makes 🢒 Cadillac 🢒 2001 🢒 Catera 🢒 Body and Accessories 🢒 Instrument Panel, Gauges, and Console 🢒 Speedometer and/or Odometer Inaccurate or Inoperative

Test Description

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

This step tests for the proper vehicle speed signal from the EBTCM.

Step	Action	Value(s)	Yes	No
Schematic Reference: Instrument Cluster Schematics
1	Did you perform the IPC Diagnostic System Check?	--	Go to Step 2	Go to Diagnostic System Check - Instrument Cluster
2	Install a scan tool. Raise the vehicle's drive wheels. Refer to Lifting and Jacking the Vehicle in General Information. Start the engine. Place the transmission into drive. With the scan tool, observe the Vehicle Speed parameter in the IPC data list. Does the Vehicle Speed parameter match the speedometer display?	--	Go to Step 3	Go to Step 4
3	Does the odometer operate properly?	--	Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems	Go to Step 8
4	Turn OFF the ignition. Disconnect the EBCM. Turn the ignition ON. Measure the voltage from the vehicle speed signal circuit to a good ground. Does the voltage measure greater than the specified value?	9.0 V	Go to Step 6	Go to Step 5
5	Test the vehicle speed signal circuit for an open, a high resistance, or a short to ground between the IPC and the EBCM. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition?	--	Go to Step 11	Go to Step 7
6	Test the vehicle speed signal circuit for a short to battery voltage. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition?	--	Go to Step 11	Go to Step 8
7	Inspect for poor connections at the harness connector of the IPC. 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 11	Go to Step 9
8	Inspect for poor connections at the harness connector of the EBCM. 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 11	Go to Step 10
9	Important: Program the replacement IPC. Replace the IPC. Refer to Instrument Cluster Replacement . Did you complete the replacement?	--	Go to Step 11	--
10	Replace the EBCM. Refer to Electronic Brake Control Module Replacement . Did you complete the replacement?	--	Go to Step 11	--
11	Operate the system in order to verify the repair. Did you correct the condition?	--	System OK	Go to Step 2