Parking and Back-Up Sensor Control Unit Input Test/Replacement
WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2017 Honda Odyssey, 2016 Honda Odyssey, 2015 Honda Odyssey, 2014 Honda Odyssey, and 2013 Honda Odyssey. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
Before testing, troubleshoot the multiplex integrated control system first, using B-CAN System Diagnosis Test Mode A (see
TROUBLESHOOTING - B-CAN SYSTEM DIAGNOSIS TEST MODE A
).
- Turn the ignition switch to LOCK (0).
- Disconnect the 24P connector (A) from the parking and back-up sensor control unit (B).
- Inspect the connector and socket terminals to be sure they are all making good contact.
- If the terminals are bent, loose or corroded, repair them as necessary, and recheck the system.
- If the terminals look OK, go to step 4.
- With the connector still disconnected, do the following input tests.
- If any test indicates a problem, find and correct the cause, then recheck the system.
- If all the input tests prove OK, go to step 5.TEST CONDITION CHART
Cavity Wire Test condition Test: Desired result Possible cause if desired result is not obtained 4 BLK Ignition switch ON (II) and parking and back-up sensor switch ON Connect a jumper wire: The parking and back-up sensor switch indicator should come on. - Blown No. C11 (7.5 A) fuse in the driver's under-dash fuse/relay box
- Faulty parking and back-up sensor switch
- An open or high resistance in the wire
11 YEL Disconnect the right front corner sensor 6P connector Check for continuity between terminal No. 11 and right front corner parking sensor terminal No. 1: There should be continuity. An open or high resistance in the wire Check for continuity between the terminal No. 11 and body ground: There should be no continuity. A short to ground in the wire. 9 GRY Disconnect the right front corner sensor 6P connector Check for continuity between terminal No. 9 and right front corner parking sensor terminal No. 3: There should be continuity. An open or high resistance in the wire Check for continuity between terminal No. 9 and body ground: There should be no continuity. A short to ground in the wire 21 RED Disconnect the right front corner sensor 6P connector Check for continuity between terminal No. 21 and right front corner parking sensor terminal No. 5: There should be continuity. An open or high resistance in the wire Check for continuity between terminal No. 21 and body ground: There should be no continuity. A short to ground in the wire 10 PUR Disconnect the left rear corner sensor 6P connector Check for continuity between terminal No. 10 and left rear corner parking sensor terminal No. 1: There should be continuity. An open or high resistance in the wire Check for continuity between terminal No. 10 and body ground: There should be no continuity. A short to ground in the wire 8 LT GRN Disconnect the left rear corner sensor 6P connector Check for continuity between terminal No. 8 and left rear corner parking sensor terminal No. 3: There should be continuity. An open or high resistance in the wire Check for continuity between terminal No. 8 and body ground: There should be no continuity. A short to ground in the wire 20 ORN Disconnect the left rear corner sensor 6P connector Check for continuity between terminal No. 20 and left rear corner parking sensor terminal No. 5: There should be continuity. An open or high resistance in the wire Check for continuity between terminal No. 20 and body ground: There should be no continuity. A short to ground in the wire
- Reconnect the 24P connector to the parking and back-up sensor control unit, and do these input tests at the following connector:
- If any test indicates a problem, find and correct the cause, then recheck the system.
- If the input test proves OK, the control unit must be faulty; replace it.TEST CONDITION CHART
Cavity Wire Test condition Test: Desired result Possible cause if desired result is not obtained 24 GRN Ignition switch ON (II) Measure the voltage to ground: There should be battery voltage. - Blown No. C11 (7.5 A) fuse in the driver's under-dash fuse/relay box
- An open or high resistance in the wire
22 LT GRN Ignition switch ON (II) and parking and back-up sensor switch ON Measure the voltage to ground: There should be battery voltage. - Blown No. C11 (7.5 A) fuse in the driver's under-dash fuse/relay box
- Faulty parking and back-up sensor switch
- An open or high resistance in the wire
3 BRN In all ignition switch positions Measure the voltage to ground: There should be less than 0.2 V. - Poor ground (G402)
- An open or high resistance in the wire
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